@article {4624, title = {Atomic excitation delocalization at the clean to disordered interface in a chirally-coupled atomic array}, journal = {Phys. Rev. Res. 6, 013159(2024)}, year = {2024}, author = {Chun-Chi Wu and Kuan-Ting Lin and I Gusti Ngurah Yudi Handayana and Cheng-Hsuan Chien and Sumit Goswami and G.-D. Lin and Y.-C. Chen and Jen, H. H} } @article {4623, title = {Generating scalable graph states in an atom-nanophotonic interface}, journal = {Quantum Science and Technology 9, 025020(2024)}, year = {2024}, author = {C-H Chien, S Goswami and C-C Wu, W-S Hiew and Y.-C. Chen and Jen, H. H} } @article {4559, title = {Fisher information analysis for quantum-enhanced parameter estimation in an electromagnetically-induced-transparency spectrum with single photons.}, journal = {PHYSICAL REVIEW A}, volume = {108, 033711(2023)}, year = {2023}, author = {Pin-Ju Tsai and Lun-Ping Yuan and Ying-Cheng Chen} } @article {4622, title = {High-fidelity Rydberg controlled-Z gates with optimized pulses}, journal = {New J. Phys, 25, 123007(2023)}, year = {2023}, author = {T.-H. Chang and T-N Wang and H.-H. Jen and Y.-C. Chen} } @article {4560, title = {Plaquette valence bond state in the spin- 12 J1 -J2 XY model on the square lattice.}, journal = {PHYSICAL REVIEW B}, volume = {107, 214402(2023)}, year = {2023}, author = {Chan, Y. -H. and Hong-Chen Jiang and Y.-C. Chen} } @article {4448, title = {Efficient quantum memory for photonic polarization qubits generate by cavity-enhanced spontane-ous parametric downconversion}, journal = {Opt. Express}, volume = { 30, 19944(2022)}, year = {2022}, author = {Y.-C. Tseng and W.-C. Wei and Y.-C. Chen} } @article {4449, title = {Resonant dipole-dipole interactions in electromagnetically induced transparency}, journal = {Phys. Rev. A}, volume = {105, 063711(2022)}, year = {2022}, author = {H.-H. Jen and G.-D. Lin and Y.-C. Chen} } @article {4562, title = {Resonant dipole-dipole interactions in electromagnetically induced transparency.}, journal = {PHYSICAL REVIEW A}, volume = {105, 063711(2022)}, year = {2022}, author = {Jen, H. H and G.-D. Lin and Y.-C. Chen} } @article {4447, title = {Room-temperature biphoton source with a spectral brightness near the ultimate limit}, journal = {Phys. Rev. Research}, volume = { 4, 023132(2022)}, year = {2022}, author = {J-M Chen and C-Y Hsu and W.-K. Huang and S.-S. Hsiao and F-C Huang and Y-H Chen and C-S Chuu and Y.-C. Chen and Y.-F. Chen and Yu, I. A.} } @article {4563, title = {Room-temperature biphoton source with a spectral brightness near the ultimate limit.}, journal = {Physical Review Research}, volume = {4, 023132(2022)}, year = {2022}, author = {Jia-Mou Chen and Chia-Yu Hsu and Wei-Kai Huang and Shih-Si Hsiao and Fu-Chen Huang and Yi-Hsin Chen and Chih-Sung Chuu and Ying-Cheng Chen and Yong-Fan Chen and Ite A. Yu} } @article {4561, title = {Temporally ultralong biphotons with a linewidth of 50 kHz.}, journal = {APL Photonics}, volume = {7(12), 126102(2022)}, year = {2022}, author = {Yu-Sheng Wang and Kai-Bo Li and Chao-Feng Chang and Tan-Wen Lin and Jian-Qing Li and Shih-Si Hsiao and Jia-Mou Chen and Yi-Hua Lai and Ying-Cheng Chen and Yong-Fan Chen and Chih-Sung Chuu and Ite A. Yu} } @article {4445, title = {Efficient frequency conversion based on electromagnetically induced transparency}, journal = {Optics Letters}, volume = {46, 681(2021)}, year = {2021}, author = {C-Y Cheng and Z-Y Liu and P-S Hu and T-N Wang and C-Y Chien and J-S Shiu and Yu, I. A. and Y.-C. Chen and Y.-F. Chen} } @article {4444, title = {Generation of sub-MHz and spectrally-bright biphotons from hot atomic vapors with a phase mis-match-free scheme}, journal = {Optics Express}, volume = {29, 4632(2021)}, year = {2021}, author = {C-Y Hsu and Y.-S. Wang and J-M Chen and F-C Huang and Y-T Ke and E K Huang and W Hung and K-L Chao and S-S Hsaio and Y-H Chen and C-S Chuu and Y.-C. Chen and Y.-F. Chen and Yu, I. A.} } @article {4443, title = {Low-loss, high-fidelity frequency beam splitter with tunable split ratio based on electromagnetical-ly induced transparency}, journal = {Phys. Rev. Research}, volume = {3, 013096 (2021)}, year = {2021}, author = {K.-F. Chang and T.-P. Wang and C.-Y. Chen and Y-H Chen and Y.-S. Wang and Y.-F. Chen and Y.-C. Chen and Ite A. Yu} } @article {4446, title = {A weakly-interacting many-body system of Rydberg polaritons based on electromagnetically in-duced transparency}, journal = {Commun. Phys}, volume = {4:101(2021)}, year = {2021}, author = {Kim, B. and K.-T. Chen and S.-S. Hsiao and S.-Y. Wang and K.-B. Li and J. Ruseckas and G. Juzeliunas and T. Kirova and M. Auzinsh and Y.-C. Chen and Y.-F. Chen and Yu, I. A.} } @article {4032, title = {Broadband coherent optical memory based on electromagnetically induced transparency}, journal = {Phys. Rev. A}, volume = {102, 063720}, year = {2020}, url = {https://doi.org/10.1103/PhysRevA.102.063720}, author = {Yan-Cheng Wei and Hsiao, Ya-Fen and Wu, Bo-Han and Pin-Ju Tsai and Ying-Cheng Chen} } @article {4319, title = {Efficient quantum memory for heralded single photons generated by cavity-enhanced spontaneous parametric downconversion}, journal = {arXiv}, volume = {2011.14948}, year = {2020}, url = {https://arxiv.org/abs/2011.14948}, author = {Yu-Chih Tseng and Yan-Cheng Wei and Ying-Cheng Chen} } @article {4022, title = {Memory-based optical polarization conversion in a double-Λ atomic system with degenerate Zeeman states}, journal = {Sci Rep}, volume = {10, 13990 (2020) }, year = {2020}, url = {https://doi.org/10.1038/s41598-020-70810-8}, author = {Yan-Cheng Wei and Sheng-Xiang Lin and Pin-Ju Tsai and Ying-Cheng Chen} } @article {3897, title = {Quantum storage and manipulation of heralded single photons in atomic quantum memories}, journal = {Phys. Rev. Research}, volume = {2}, year = {2020}, url = {https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.033155?fbclid=IwAR1BePSC4oKrQdnKiNekCDA6L7PkybakhLcBBpfFSYF6cqrMe-MMImcCyFE}, author = {Pin-Ju Tsai and Hsiao, Ya-Fen and Ying-Cheng Chen} } @article {4094, title = {Subradiance dynamics in a singly excited chirally coupled atomic chain}, journal = {PHYSICAL REVIEW A}, volume = {101}, year = {2020}, url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.101.023830?fbclid=IwAR3OiWGiFEcwaA4SHZZE3MQJl-BgMgvHI32oMWGU-dSKXe0Prr9JTQ0CnjM}, author = {Jen, H. H and M.-S. Chang and G.-D. Lin and Y. C. Chen} } @article {4006, title = {Theoretical study on memory-based optical converter with degenerate Zeeman states}, journal = {Phys. Rev. A}, volume = {100(063843)}, year = {2020}, url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.063843?fbclid=IwAR0rekgHAQ6MXoiEF_l62Sp5wocfsKdk9ob3H5PE5IrDt2Ui06Cj80MEgWA}, author = {Pin-Ju Tsai and Yan-Cheng Wei and Wu, Bo-Han and Sheng-Xiang Li and Ying-Cheng Chen} } @article {3898, title = {Low-Loss High-Fidelity Frequency-Mode Hadamard Gates Based on Electromagnetically Induced Transparency}, journal = {arXiv}, volume = {1907.03393}, year = {2019}, author = {Kao-Fang Chang and Ta-Pang Wang and Chun-Yi Chen and Yi-Hsin Chen and Yu-Sheng Wang and Yong-Fan Chen and Ying-Cheng Chen and Ite A. Yu} } @article {3865, title = {Subradiance dynamics in a singly-excited chiral-coupled atomic chain}, journal = {arXiv:1905.00558}, year = {2019}, author = {Jen, H. H and M.-S. Chang and G.-D. Lin and Y.-C. Chen} } @article {2975, title = {Absolute frequency of cesium 6S1/2{\textendash}6D3/2 hyperfine transition with a precision to nuclear magnetic octupole interaction}, journal = {Optics Letters}, volume = {43}, year = {2018}, author = {Ting-Ju Chen and Jeng-En Chen and Hsin-Hung Yu and Tz-Wei Liu and Hsiao, Ya-Fen and Ying-Cheng Chen and Ming-Shien Chang and Wang-Yau Cheng} } @article {2902, title = {Cooperative light scattering from helical-phase-imprinted atomic rings}, journal = {Scientific Reports}, volume = { 8}, year = {2018}, author = {Jen, H. H and M.-S. Chang and Y.-C. Chen} } @article {2903, title = {Highly Efficient Coherent Optical Memory Based on Electromagnetically Induced Transparency}, journal = {Phys. Rev. Lett}, volume = {120}, year = {2018}, author = {Hsiao, Ya-Fen and Pin-Ju Tsai and Hung-Shiue Chen and Sheng-Xiang Lin and Chih-Chiao Hung and Chih-Hsi Lee and Yi-Hsin Chen and Yong-Fan Chen and Ite A. Yu and Ying-Cheng Chen} } @article {2904, title = {Ultrabright, narrow-band photon-pair source for atomic quantum memories}, journal = {Quantum Sci. Technol}, volume = { 3 }, year = {2018}, author = {Pin-Ju Tsai and Ying-Cheng Chen} } @article {3001, title = {Λ -enhanced gray-molasses cooling of cesium atoms on the D 2 line}, journal = {Phys. Rev. A}, volume = {98}, year = {2018}, author = {Hsiao, Ya-Fen and Yu-Ju Lin and Ying-Cheng Chen} } @article {2492, title = {Cooperative single-photon subradiant states}, journal = {Physical Review A}, volume = { 94}, year = {2016}, pages = {013803}, author = {Jen, H. H and M.S. Chang and Y. C. Chen} } @article {2491, title = {High conversion efficiency in resonant four-wave mixing processes}, journal = { Optics Express}, volume = {24 }, year = {2016}, pages = {1008-1016}, author = {Lee, Chin-Yuan and Wu, Bo-Han and Wang, Gang and Yong-Fang Chen and Ying-Cheng Chen and Ite A. Yu} } @article {2615, title = {High-Efficiency Coherent Light Storage for the Application of Quantum Memory}, journal = {AAPPS Bulletin}, volume = {26}, year = {2016}, author = {Yi-Hsin Chen and Ying-Cheng Chen and Ite A. Yu} } @article {2546, title = {Large Cross-Phase Modulations at the Few-Photon Level}, journal = {Phys. Rev. Lett}, volume = {117}, year = {2016}, author = {Zi-Yu Liu and Yi-Hsin Chen and Chen, Yen-Chun and Lo, Hsiang-Yu and Pin-Ju Tsai and Ite A. Yu and Ying-Cheng Chen and Yong-Fan Chen} } @article {2490, title = {Spectral shaping of cascade emissions from multiplexed cold atomic ensembles}, journal = { Physical Review A}, volume = {93 }, year = {2016}, pages = {013811 }, author = {Jen, H. H and Y. C. Chen} } @article {2246, title = {Coherence properties of amplified slow light by four-wave mixing}, journal = {Optics Letters}, volume = {39}, year = {2014}, pages = {3394-3397}, abstract = {

We present an experimental study of the coherence properties of amplified slow light by four-wave mixing (FWM) in a three-level electromagnetically induced transparency (EIT) system driven by one additional pump field. High energy gain (up to 19) is obtained with a weak pump field (a few mW/cm2) using optically dense cold atomic gases. A large fraction of the amplified light is found to be phase incoherent to the input signal field. The dependence of the incoherent fraction on pump field intensity and detuning and the control field intensity is systematically studied. With the classical input pulses, our results support a recent theoretical study by Lauk et al. [Phys. Rev. A 88, 013823 (2013)], showing that the noise resulting from the atomic dipole fluctuations associated with spontaneous decay is significant in the high gain regime. This effect has to be taken into consideration in EIT-based applications in the presence of FWM.

}, author = {Hsiao, Ya-Fen and Pin-Ju Tsai and Chi-Ching Lin and Yong-Fan Chen and Ite A. Yu and Ying-Cheng Chen} } @article {2245, title = {Cold atomic media with ultrahigh optical depths}, journal = {Phys. Rev. A}, volume = {90}, year = {2014}, pages = {054401}, abstract = {

We present an experimental study to achieve ultrahigh optical depths for cold atomic media with a two dimensional magneto-optical trap (MOT) of cesium. By combining large atom number, a temporally dark and compressed MOT, and Zeeman-state optical pumping, we achieve an optical depth of up to 1306 for the open transition of the cesium D1 line. Our work demonstrates that it is feasible to push the optical depth up to the 1000 level with a convenient MOT setup. This development paves the way to many important proposals in quantum optics and many-body physics.

}, author = {Hsiao, Ya-Fen and Hung-Shiue Chen and Pin-Ju Tsai and Ying-Cheng Chen} } @article {2244, title = {Interaction between two stopped light pulses}, journal = {AIP Conference Proceedings }, volume = {1588}, year = {2014}, pages = {17-26}, abstract = {

The efficiency of a nonlinear optical process is proportional to the interaction time. We report a scheme of all-optical switching based on two motionless light pulses via the effect of electromagnetically induced transparency. One pulse was stopped as the stationary light pulse (SLP) and the other was stopped as stored light. The time of their interaction via the medium can be prolonged and, hence, the optical nonlinearity is greatly enhanced. Using a large optical density (OD) of 190, we achieved a very long interaction time of 6.9 μs. This can be analogous to the scheme of trapping light pulses by an optical cavity with a Q factor of 8{\texttimes}109. With the approach of using moving light pulses in the best situation, a switch can only be activated at 2 photons per atomic absorption cross section. With the approach of employing a SLP and a stored light pulse, a switch at only 0.56 photons was achieved and the efficiency is significantly improved. Moreover, the simulation results are in good agreement with the experimental data and show that the efficiency can be further improved by increasing the OD of the medium. Our work advances the technology in quantum information manipulation utilizing photons.

}, author = {Yi-Hsin Chen and Meng-Jung Lee and Hung, Weilun and Ying-Cheng Chen and Yong-Fan Chen and Ite A. Yu} } @article {2243, title = {Low-light-level four-wave mixing by quantum interference}, journal = {Phys. Rev. A}, volume = {89}, year = {2014}, pages = {5}, abstract = {

We observed electromagnetically induced transparency-based four-wave mixing (FWM) in the pulsed regime at low light levels. The FWM conversion efficiency of 3.8(9)\% was observed in a four-level system of cold 87Rb atoms using a driving laser pulse with a peak intensity of ≈80 μW/cm2, corresponding to an energy of ≈60 photons per atomic cross section. Comparison between the experimental data and the theoretical predictions proposed by Harris and Hau [Phys. Rev. Lett. 82, 4611 (1999)] showed good agreement. Additionally, a high conversion efficiency of 46(2)\% was demonstrated when applying this scheme using a driving laser intensity of ≈1.8 mW/cm2. According to our theoretical predictions, this FWM scheme can achieve a conversion efficiency of nearly 100\% when using a dense medium with an optical depth of 500.

}, author = {Chang-Kai Chiu and Yi-Hsin Chen and Chen, Yen-Chun and Ite A. Yu and Ying-Cheng Chen and Yong-Fan Chen} } @article {1897, title = {Coherent Optical Memory with High Storage Efficiency and Large Fractional Delay}, journal = {Physical Review Letters}, volume = {110}, number = {8}, year = {2013}, note = {

ISI Document Delivery No.: 092SF Times Cited: 0 Cited Reference Count: 33 Chen, Yi-Hsin Lee, Meng-Jung Wang, I-Chung Du, Shengwang Chen, Yong-Fan Chen, Ying-Cheng Yu, Ite A. National Science Council of Taiwan [100-2628-M-007-001, 101-2923-M-007-002]; National Tsing Hua University [101N2713E1]; Hong Kong Research Grants Council [600710]; EU [PIRSES-GA-2009-247475] This work was supported by the National Science Council of Taiwan under Grants No. 100-2628-M-007-001 and No. 101-2923-M-007-002 and by National Tsing Hua University under Grant No. 101N2713E1. S. D. was supported by the Hong Kong Research Grants Council (Project No. 600710). The Hsinchu team is the partner in EU FP7 IRSES project COLIMA (Contract No. PIRSES-GA-2009-247475). The authors thank Professor P. K. Lam for valuable comments on the manuscript. 0 Amer physical soc College pk

}, month = {Feb}, pages = {5}, type = {Article}, abstract = {

A high-storage efficiency and long-lived quantum memory for photons is an essential component in long-distance quantum communication and optical quantum computation. Here, we report a 78\% storage efficiency of light pulses in a cold atomic medium based on the effect of electromagnetically induced transparency. At 50\% storage efficiency, we obtain a fractional delay of 74, which is the best up-to-date record. The classical fidelity of the recalled pulse is better than 90\% and nearly independent of the storage time, as confirmed by the direct measurement of phase evolution of the output light pulse with a beat-note interferometer. Such excellent phase coherence between the stored and recalled light pulses suggests that the current result may be readily applied to single photon wave packets. Our work significantly advances the technology of electromagnetically induced transparency-based optical memory and may find practical applications in long-distance quantum communication and optical quantum computation. DOI: 10.1103/PhysRevLett.110.083601

}, isbn = {0031-9007}, url = {://WOS:000315141600009}, author = {Chen, Y. H. and Lee, M. J. and Wang, I. C. and Du, S. W. and Y.F. Chen and Y. C. Chen and Yu, I. A.} } @article {1902, title = {Field-induced long-lived supermolecules}, journal = {Physical Review A}, volume = {85}, year = {2012}, note = {

937IC Times Cited:0 Cited References Count:39

}, month = {May 7}, abstract = {

We demonstrate that the long-lived bound states (supermolecules) can exist in the dilute limit when we tune the shape of the effective potential between polar molecules by an external microwave field. Binding energies, average sizes, and phase diagrams for both s-orbital (bosons) and p-orbital (fermions) dimers are studied, together with bosonic trimer states. We explicitly show that the nonadiabatic transition rate can be easily tuned small for such ground-state supermolecules, so that the system can be stable from collapse even near the associated potential resonance. Our results, therefore, suggest a feasible cold molecule system to investigate novel few-body and many-body physics (for example, the p-wave BCS-Bose-Einstein-condensate crossover for fermions and the paired condensate for bosons) that cannot be easily accessed in single species atomic gases.

}, isbn = {1050-2947}, url = {://000303651200012}, author = {Huang, S. J. and Hsu, Y. T. and Lee, H. and Y. C. Chen and Volosniev, A. G. and Zinner, N. T. and Wang, D. W.} } @article {1906, title = {Enhanced all-optical switching with double slow light pulses}, journal = {Physical Review A}, volume = {86}, year = {2012}, note = {

Times Cited: 0

}, month = {Dec 28}, abstract = {n/a}, isbn = {1050-2947}, url = {://WOS:000312830200008}, author = {Chi-Ching Lin and Meng-Chang Wu and Bor-Wen Shiau and Yi-Hsin Chen and Ite A. Yu and Yong-Fan Chen and Ying-Cheng Chen} } @article {1898, title = {Demonstration of the Interaction between Two Stopped Light Pulses}, journal = {Physical Review Letters}, volume = {108}, year = {2012}, note = {

PRL

}, pages = {173603}, abstract = {n/a}, url = {http://link.aps.org/doi/10.1103/PhysRevLett.108.173603}, author = {Yi-Hsin Chen and Meng-Jung Lee and Hung, Weilun and Ying-Cheng Chen and Yong-Fan Chen and Ite A. Yu} } @article {1890, title = {Low-Light-Level Cross-Phase Modulation with Double Slow Light Pulses}, journal = {Physical Review Letters}, volume = {106}, number = {19}, year = {2011}, note = {

ISI Document Delivery No.: 762KCTimes Cited: 0Cited Reference Count: 20Cited References: Anton MA, 2008, OPT COMMUN, V281, P6040, DOI 10.1016/j.optcom.2008.09.014 MacRae A, 2008, OPT LETT, V33, P2659, DOI 10.1364/OL.33.002659 Li SJ, 2008, PHYS REV LETT, V101 Lin YW, 2008, OPT EXPRESS, V16, P3753, DOI 10.1364/OE.16.003753 Chen YF, 2006, PHYS REV A, V74, DOI 10.1103/PhysRevA.74.063807 Ottaviani C, 2006, EUR PHYS J D, V40, P281, DOI 10.1140/epjd/e2006-00164-5 Wang ZB, 2006, PHYS REV LETT, V97, DOI 10.1103/PhysRevLett.97.063901 Chen YF, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.043603 Chen YF, 2005, PHYS REV A, V72, DOI 10.1103/PhysRevA.72.033812 Fleischhauer M, 2005, REV MOD PHYS, V77, P633, DOI 10.1103/RevModPhys.77.633 Rebic S, 2004, PHYS REV A, V70, DOI 10.1103/PhysRevA.70.032317 Petrosyan D, 2004, PHYS REV A, V70, DOI 10.1103/PhysRevA.70.023822 Kang HS, 2003, PHYS REV LETT, V91, DOI 10.1103/PhysRevLett.91.093601 Ottaviani C, 2003, PHYS REV LETT, V90, DOI 10.1103/PhysRevLett.90.197902 Matsko AB, 2003, OPT LETT, V28, P96, DOI 10.1364/OL.28.000096 Petrosyan D, 2002, PHYS REV A, V65, DOI 10.1103/PhysRevA.65.033833 Lukin MD, 2000, PHYS REV LETT, V84, P1419, DOI 10.1103/PhysRevLett.84.1419 Harris SE, 1999, PHYS REV LETT, V82, P4611, DOI 10.1103/PhysRevLett.82.4611 Hau LV, 1999, NATURE, V397, P594, DOI 10.1038/17561 Schmidt H, 1996, OPT LETT, V21, P1936, DOI 10.1364/OL.21.001936Shiau, Bor-Wen Wu, Meng-Chang Lin, Chi-Ching Chen, Ying-ChengNational Science Council of Taiwan under NSC[97-2112-M-028-MY3, 98-2628-M-001-003, 99-2628-M-001-021]We acknowledge fruitful discussions with Ite A. Yu and Yong-Fong Chen. This work was supported by the National Science Council of Taiwan under NSC Grants No. 97-2112-M-028-MY3, No. 98-2628-M-001-003, and No. 99-2628-M-001-021.AMER PHYSICAL SOCCOLLEGE PK

}, month = {May}, pages = {4}, type = {Article}, abstract = {

We report on the first experimental demonstration of low-light-level cross-phase modulation (XPM) with double slow light pulses based on the double electromagnetically induced transparency (EIT) in cold cesium atoms. The double EIT is implemented with two control fields and two weak fields that drive populations prepared in the two doubly spin-polarized states. Group velocity matching can be obtained by tuning the intensity of either of the control fields. The XPM is based on the asymmetric M-type five-level system formed by the two sets of EIT. Enhancement in the XPM by group velocity matching is observed. Our work advances studies of low-light-level nonlinear optics based on double slow light pulses.

}, keywords = {ATOM, electromagnetically induced transparency, NONLINEAR OPTICS}, isbn = {0031-9007}, url = {://WOS:000290474100009}, author = {Shiau, B. W. and Wu, M. C. and C.C. Lin and Y. C. Chen} } @article {1888, title = {Creation of arbitrary spectra with an acousto-optic modulator and an injection-locked diode laser}, journal = {Review of Scientific Instruments}, volume = {82}, number = {8}, year = {2011}, note = {

ISI Document Delivery No.: 814VZTimes Cited: 0Cited Reference Count: 11Cited References: ROGERS CE, 2011, REV SCI INSTRUM, V82 Shuman ES, 2010, NATURE, V467, P820 Johnson DMS, 2010, OPT LETT, V35, P745 Shuman ES, 2009, PHYS REV LETT, V103 Houtz R, 2009, OPT EXPRESS, V17, P19235 Tomita I, 2003, IEEE PHOTONIC TECH L, V15, P1204, DOI 10.1109/LPT.2003.816125 Buchkremer FBJ, 2000, REV SCI INSTRUM, V71, P3306, DOI 10.1063/1.1287633 Ferrari G, 1999, OPT LETT, V24, P151, DOI 10.1364/OL.24.000151 SINCLAIR AG, 1994, J OPT SOC AM B, V11, P2333, DOI 10.1364/JOSAB.11.002333 JOHNSON RV, 1979, APPL OPTICS, V18, P903, DOI 10.1364/AO.18.000903 DAGDIGIA.PJ, 1974, J CHEM PHYS, V60, P2330, DOI 10.1063/1.1681366Lin, Pei-Ying Shiau, Bor-Wen Hsiao, Ya-Fen Chen, Ying-ChengNational Science Council of Taiwan[98-2628-M-001-003, 99-2628-M-001-021]This work was supported by the National Science Council of Taiwan under NSC (Grant Nos. 98-2628-M-001-003 and 99-2628-M-001-021).AMER INST PHYSICSMELVILLE

}, month = {Aug}, pages = {6}, type = {Article}, abstract = {

We use a double-passed acousto-optic modulator (AOM), driven by an arbitrary waveform generator to produce multiple frequency components for a laser with arbitrary frequency spacings. A programmed sequence containing various sections of radio-frequency sinusoidal signal at different frequency is applied to drive the AOM. The diffracted light is used to injection-lock a diode laser. The combined techniques allow us to generate the multi-line spectra for the diode laser with arbitrary frequency spacings in the range of 100 MHz at a relatively high output power of 80 mW and a small power variation of 2\%. Such a light source can be used in the application for laser cooling of molecules. (C) 2011 American Institute of Physics. [doi:10.1063/1.3626903]

}, keywords = {BAND, FREQUENCY}, isbn = {0034-6748}, url = {://WOS:000294486600009}, author = {Lin, P. Y. and Shiau, B. W. and Hsiao, Y. F. and Y. C. Chen} } @article {1889, title = {Electromagnetically-induced-transparency-based cross-phase-modulation at attojoule levels}, journal = {Physical Review A}, volume = {83}, number = {4}, year = {2011}, note = {

ISI Document Delivery No.: 757RQTimes Cited: 1Cited Reference Count: 24Cited References: Pritchard JD, 2010, PHYS REV LETT, V105 Lo HY, 2010, OPT EXPRESS, V18, P18498 Mucke M, 2010, NATURE, V465, P755 Lo HY, 2010, PHYS REV A, V81 Gea-Banacloche J, 2010, PHYS REV A, V81 Zhu YF, 2010, OPT LETT, V35, P303 Lin YW, 2009, PHYS REV LETT, V102 Bajcsy M, 2009, PHYS REV LETT, V102 Siddons P, 2009, NAT PHOTONICS, V3, P225 Matsuda N, 2009, NAT PHOTONICS, V3, P95 Fushman I, 2008, SCIENCE, V320, P769, DOI 10.1126/science.1154643 Chen YF, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.043603 Chen YF, 2005, OPT LETT, V30, P3207, DOI 10.1364/OL.30.003207 Friedler I, 2005, PHYS REV A, V72, DOI 10.1103/PhysRevA.72.043803 Fleischhauer M, 2005, REV MOD PHYS, V77, P633, DOI 10.1103/RevModPhys.77.633 Bajcsy M, 2003, NATURE, V426, P638, DOI 10.1038/nature02176 Kang HS, 2003, PHYS REV LETT, V91, DOI 10.1103/PhysRevLett.91.093601 Lukin MD, 2000, PHYS REV LETT, V84, P1419, DOI 10.1103/PhysRevLett.84.1419 Harris SE, 1999, PHYS REV LETT, V82, P4611, DOI 10.1103/PhysRevLett.82.4611 Hau LV, 1999, NATURE, V397, P594, DOI 10.1038/17561 Harris SE, 1997, PHYS TODAY, V50, P36, DOI 10.1063/1.881806 Schmidt H, 1996, OPT LETT, V21, P1936, DOI 10.1364/OL.21.001936 TURCHETTE QA, 1995, PHYS REV LETT, V75, P4710, DOI 10.1103/PhysRevLett.75.4710 KETTERLE W, 1993, PHYS REV LETT, V70, P2253, DOI 10.1103/PhysRevLett.70.2253Lo, Hsiang-Yu Chen, Yen-Chun Su, Po-Ching Chen, Hao-Chung Chen, Jun-Xian Chen, Ying-Cheng Yu, Ite A. Chen, Yong-FanNational Science Council of Taiwan[98-2628-M-006-002]We acknowledge Bing He for helpful discussions. This work was supported by the National Science Council of Taiwan under Grant No. 98-2628-M-006-002.AMER PHYSICAL SOCCOLLEGE PK

}, month = {Apr}, pages = {4}, type = {Article}, abstract = {

We report the experimental demonstration of electromagnetically-induced-transparency-based cross-phase-modulation at attojoule or, equivalently, few-hundred-photon levels. A phase shift of 0.005 rad of a probe pulse modulated by a signal pulse with an energy of similar to 100 aJ, equivalent to similar to 400 photons, was observed in a four-level system of cold (87)Rb atoms.

}, keywords = {ATOMS, CAVITY, KERR NONLINEARITIES, light, optics, PULSES, SHIFTS}, isbn = {1050-2947}, url = {://WOS:000290105800004}, author = {Lo, H. Y. and Y. C. Chen and Su, P. C. and Chen, H. C. and Chen, J. X. and Yu, I. A. and Y.F. Chen} } @article {1884, title = {Intense SrF radical beam for molecular cooling experiments}, journal = {Review of Scientific Instruments}, volume = {80}, number = {11}, year = {2009}, note = {

ISI Document Delivery No.: 536RITimes Cited: 0Cited Reference Count: 35Cited References: Carr LD, 2009, NEW J PHYS, V11 Patterson D, 2009, NEW J PHYS, V11 Wall TE, 2008, PHYS REV A, V78 Narevicius E, 2008, PHYS REV LETT, V100 Hogan SD, 2007, PHYS REV A, V76, DOI 10.1103/PhysRevA.76.023412 Patterson D, 2007, J CHEM PHYS, V126 Kohler T, 2006, REV MOD PHYS, V78, P1311, DOI 10.1103/RevModPhys.78.1311 Rabl P, 2006, PHYS REV LETT, V97, DOI 10.1103/PhysRevLett.97.033003 Fulton R, 2006, NAT PHYS, V2, P465, DOI 10.1038/nphys339 Chen L, 2006, J CHEM PHYS, V124, DOI 10.1063/1.2139092 Maxwell SE, 2005, PHYS REV LETT, V95, DOI 10.1103/PhysRevLett.95.173201 Hornkohl JO, 2005, APPL OPTICS, V44, P3686, DOI 10.1364/AO.44.003686 Di Rosa MD, 2004, EUR PHYS J D, V31, P395 Egorov D, 2004, EUR PHYS J D, V31, P307, DOI 10.1140/epjd/e2004-00140-1 Blinov BB, 2004, NATURE, V428, P153, DOI 10.1038/nature02377 KERMAN J, 2004, PHYS REV LETT, V92 Elioff MS, 2003, SCIENCE, V302, P1940, DOI 10.1126/science.1090679 Rangwala SA, 2003, PHYS REV A, V67, DOI 10.1103/PhysRevA.67.043406 BROWN J, 2003, ROTATIONAL SPECTROSC Gupta M, 2001, J PHYS CHEM A, V105, P1626, DOI 10.1021/jp002640u Rugamas F, 2000, MEAS SCI TECHNOL, V11, P1750, DOI 10.1088/0957-0233/11/12/315 Bethlem HL, 1999, PHYS REV LETT, V83, P1558, DOI 10.1103/PhysRevLett.83.1558 Teule JM, 1998, J PHYS CHEM A, V102, P9482, DOI 10.1021/jp981993e Weinstein JD, 1998, NATURE, V395, P148 Colarusso P, 1996, J MOL SPECTROSC, V175, P158, DOI 10.1006/jmsp.1996.0019 KEIJZER F, 1995, J MOL SPECTROSC, V169, P511, DOI 10.1006/jmsp.1995.1043 STEIMLE TC, 1993, J MOL SPECTROSC, V158, P487, DOI 10.1006/jmsp.1993.1094 KANDLER J, 1989, CHEM PHYS LETT, V155, P470, DOI 10.1016/0009-2614(89)87188-X ERNST WE, 1985, CHEM PHYS LETT, V113, P351, DOI 10.1016/0009-2614(85)80379-1 CHILDS WJ, 1981, J MOL SPECTROSC, V87, P522, DOI 10.1016/0022-2852(81)90422-7 DOMAILLE PJ, 1977, J MOL SPECTROSC, V68, P146, DOI 10.1016/0022-2852(77)90430-1 STEIMLE TC, 1977, J MOL SPECTROSC, V68, P134, DOI 10.1016/0022-2852(77)90429-5 DAGDIGIA.PJ, 1974, J CHEM PHYS, V60, P2330, DOI 10.1063/1.1681366 HILDENBR.DL, 1968, J CHEM PHYS, V48, P3657, DOI 10.1063/1.1669666 TU MF, UNPUBTu, Ming-Feng Ho, Jia-Jung Hsieh, Chih-Chiang Chen, Ying-ChengNSC[96-2112-M-001-006, 97-2628-M-001-028]This work is supported by the National Science Council of Taiwan under NSC Grant Nos. 96-2112-M-001-006 and 97-2628-M-001-028.AMER INST PHYSICSMELVILLE

}, month = {Nov}, pages = {5}, type = {Article}, abstract = {

We have developed a continuous SrF radical beam for the loading of helium buffer gas cooling. The SrF molecules are efficiently generated by high-temperature chemical reaction of the solid precursor SrF(2) with boron in a graphite oven. The beam properties are characterized with laser-induced fluorescence spectroscopic method. We obtain a molecular flux of up to 2.1 x 10(15) sr(-1) s(-1) at the detection region for all rotational states. The dependence of the flux on oven temperature suggests that even higher flux is possible if a higher temperature in the oven is achieved. (C) 2009 American Institute of Physics. [doi:10.1063/1.3262631]

}, keywords = {BAND, LASER, OPTICAL DOUBLE-RESONANCE, SPECTRUM, STATE, SYSTEM}, isbn = {0034-6748}, url = {://WOS:000273061100012}, author = {Tu, M. F. and Ho, J. J. and Hsieh, C. C. and Y. C. Chen} } @article {1883, title = {Using a pair of rectangular coils in the MOT for the production of cold atom clouds with large optical density}, journal = {Optics Express}, volume = {16}, number = {6}, year = {2008}, note = {

ISI Document Delivery No.: 276DLTimes Cited: 11Cited Reference Count: 39Cited References: Cho HW, 2007, OPT EXPRESS, V15, P12114, DOI 10.1364/OE.15.012114 Guan PC, 2007, PHYS REV A, V76, DOI 10.1103/PhysRevA.76.033817 Gomez E, 2007, PHYS REV A, V75, DOI 10.1103/PhysRevA.75.033418 Chen YF, 2006, PHYS REV A, V74, DOI 10.1103/PhysRevA.74.063807 Chaudhuri S, 2006, PHYS REV A, V74, DOI 10.1103/PhysRevA.74.023406 Castagna N, 2006, EUR PHYS J-APPL PHYS, V34, P21, DOI 10.1051/epjap:2006037 Ramirez-Serrano J, 2006, OPT LETT, V31, P682, DOI 10.1364/OL.31.000682 Chen YF, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.043603 Chen YF, 2005, OPT LETT, V30, P3207, DOI 10.1364/OL.30.003207 Overstreet KR, 2005, OPT EXPRESS, V13, P9672, DOI 10.1364/OPEX.13.009672 Chen YF, 2005, PHYS REV A, V72, DOI 10.1103/PhysRevA.72.053803 Bartenstein M, 2005, PHYS REV LETT, V94, DOI 10.1103/PhysRevLett.94.103201 Oates CW, 2005, PHYS REV A, V71 Braje DA, 2004, PHYS REV LETT, V93, DOI 10.1103/PhysRevLett.93.183601 Kang HS, 2004, PHYS REV LETT, V93, DOI 10.1103/PhysRevLett.93.073601 Vengalattore M, 2004, PHYS REV LETT, V92 Sanguinetti S, 2003, EUR PHYS J D, V25, P3, DOI 10.1140/epjd/e2003-00215-5 Schoser J, 2002, PHYS REV A, V66 Cren P, 2002, EUR PHYS J D, V20, P107, DOI 10.1140/epjd/e2002-00106-3 Chen YC, 2001, PHYS REV A, V64 Phillips DF, 2001, PHYS REV LETT, V86, P783, DOI 10.1103/PhysRevLett.86.783 Liu C, 2001, NATURE, V409, P490, DOI 10.1038/35054017 Sortais Y, 2000, PHYS REV LETT, V85, P3117, DOI 10.1103/PhysRevLett.85.3117 Fleischhauer M, 2000, PHYS REV LETT, V84, P5094, DOI 10.1103/PhysRevLett.84.5094 Hau LV, 1999, NATURE, V397, P594, DOI 10.1038/17561 METCALF HJ, 1999, LASER COOLING TRAPPI Dieckmann K, 1998, PHYS REV A, V58, P3891, DOI 10.1103/PhysRevA.58.3891 Berthoud P, 1998, EUROPHYS LETT, V41, P141, DOI 10.1209/epl/i1998-00122-9 Weyers S, 1997, OPT COMMUN, V143, P30, DOI 10.1016/S0030-4018(97)00312-X DAVIS KB, 1995, PHYS REV LETT, V75, P3969, DOI 10.1103/PhysRevLett.75.3969 ANDERSON MH, 1995, SCIENCE, V269, P198, DOI 10.1126/science.269.5221.198 ADAMS CS, 1994, PHYS REP, V240, P143, DOI 10.1016/0370-1573(94)90066-3 KASEVICH M, 1992, APPL PHYS B-PHOTO, V54, P321, DOI 10.1007/BF00325375 MONROE C, 1990, PHYS REV LETT, V65, P1571, DOI 10.1103/PhysRevLett.65.1571 RIIS E, 1990, PHYS REV LETT, V64, P1658, DOI 10.1103/PhysRevLett.64.1658 WALKER T, 1990, PHYS REV LETT, V64, P408, DOI 10.1103/PhysRevLett.64.408 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631 STECK DA, CESIUM D LINE DATA STECK DA, RUBIDIUM 87 D LINE DLin, Yen-Wei Chou, Hung-Chih Dwivedi, Prashant P. Chen, Ying-Cheng Yu, Ite A.OPTICAL SOC AMERWASHINGTON

}, month = {Mar}, pages = {3753-3761}, type = {Article}, abstract = {

We demonstrate a simple method to increase the optical density (OD) of cold atom clouds produced by a magneto-optical trap (MOT). A pair of rectangular anti-Helmholtz coils is used in the MOT to generate the magnetic field that produces the cigar-shaped atom cloud. With 7.2 x 10(8) Rb-87 atoms in the cigar-type MOT, we achieve an OD of 32 as determined by the slow light measurement and this OD is large enough such that the atom cloud can almost contain the entire Gaussian light pulse. Compared to the conventional MOT under the same trapping conditions, the OD is increased by about 2.7 folds by this simple method. In another MOT setup of the cigar-shaped Cs atom cloud, we achieve an OD of 105 as determined by the absorption spectrum of the |6S(1/2), F = 4 \> -\>| 6P(3/2), F {\textquoteright} = 5 \> transition. (C) 2008 Optical Society of America

}, keywords = {2-DIMENSIONAL MAGNETOOPTICAL TRAP, ATOMS, BOSE-EINSTEIN CONDENSATION, CESIUM, CONTINUOUS BEAM, GAS, light, SLOW, SODIUM ATOMS, STORAGE, vapor}, isbn = {1094-4087}, url = {://WOS:000254121400030}, author = {Lin, Y. W. and Chou, H. C. and Dwivedi, P. P. and Y. C. Chen and Yu, I. A.} } @article {1880, title = {Kinetic energy oscillations in annular regions of ultracold neutral plasmas}, journal = {European Physical Journal D}, volume = {40}, number = {1}, year = {2006}, note = {

ISI Document Delivery No.: 083RETimes Cited: 7Cited Reference Count: 23Cited References: Cummings EA, 2005, PHYS REV LETT, V95, DOI 10.1103/PhysRevLett.95.235001 Cummings EA, 2005, PHYS PLASMAS, V12, DOI 10.1063/1.2140683 KILLIAN TC, 2005, J PHYS B ATOM MOL PH, V38, P351 LAHA S, 2005, THESIS RICE U POHL T, 2005, J PHYS CONF SER, V11, P223, DOI 10.1088/1742-6596/11/1/022 Chen YC, 2004, PHYS REV LETT, V93, DOI 10.1103/PhysRevLett.93.265003 Pohl T, 2004, PHYS REV LETT, V92, DOI 10.1103/PhysRevLett.92.155003 Simien CE, 2004, PHYS REV LETT, V92, DOI 10.1103/PhysRevLett.92.143001 POHL T, 2004, J PHYS B ATOM MOL PH, V37, P183 Morozov IV, 2003, J PHYS A-MATH GEN, V36, P6005, DOI 10.1088/0305-4470/36/22/323 Robicheaux F, 2003, PHYS PLASMAS, V10, P2217, DOI 10.1063/1.1573213 NAGEL SB, 2003, PHYS REV A, V67, P11401 Kuzmin SG, 2002, PHYS PLASMAS, V9, P3743, DOI 10.1063/1.1497166 MAZEVET S, 2002, PHYS REV LETT, V88, P55001 Murillo MS, 2001, PHYS REV LETT, V87, part. no., DOI 10.1103/PhysRevLett.87.115003 Kulin S, 2000, PHYS REV LETT, V85, P318, DOI 10.1103/PhysRevLett.85.318 Killian TC, 1999, PHYS REV LETT, V83, P4776, DOI 10.1103/PhysRevLett.83.4776 Zwicknagel G, 1999, CONTRIB PLASM PHYS, V39, P155, DOI 10.1002/ctpp.2150390138 Hamaguchi S, 1997, PHYS REV E, V56, P4671, DOI 10.1103/PhysRevE.56.4671 SIEGMAN AE, 1986, LASERS JONES WD, 1985, INTRO LINEAR THEORIE, P63501 GOULD H, 1975, PHYS REV LETT, V35, P1455, DOI 10.1103/PhysRevLett.35.1455 HANSEN JP, 1974, PHYS REV LETT, V32, P277, DOI 10.1103/PhysRevLett.32.277Laha, S. Chen, Y. C. Gupta, P. Simien, C. E. Martinez, Y. N. Mickelson, P. G. Nagel, S. B. Killian, T. C.International Workshop on Ultracold Plasma and Rydberg Systems (Ultracold PARYS)FEB 14-MAR 16, 2005Gif sur Yvette, FRANCESPRINGERNEW YORK

}, month = {Oct}, pages = {51-56}, type = {Article; Proceedings Paper}, abstract = {

A study of ion equilibration in annular regions of ultracold strontium plasmas is reported. Plasmas are formed by photoionizing laser-cooled atoms with a pulsed dye laser. The experimental probe is spatially-resolved absorption spectroscopy using the S-2(1/2)-P-2(1/2) transition of the Sr+ ion. The kinetic energy of the ions is calculated from the Doppler broadening of the spectrum, and it displays clear oscillations during the first microsecond after plasma formation. The oscillations, which are a characteristic of strong coulomb coupling, are fit with a simple phenomenological model incorporating damping and density variation in the plasma.

}, keywords = {DYNAMICS, EXPANSION, ONE-COMPONENT PLASMA, relaxation}, isbn = {1434-6060}, url = {://WOS:000240475100008}, author = {Laha, S. and Y. C. Chen and Gupta, P. and Simien, C. E. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Killian, T. C.} } @article {1910, title = {Spectroscopic determination of the s-wave scattering lengths of Sr-86 and Sr-88}, journal = {Physical Review Letters}, volume = {95}, year = {2005}, note = {

Times Cited: 30

}, month = {Nov 25}, abstract = {

We report the use of photoassociative spectroscopy to determine the ground-state s-wave scattering lengths for the main bosonic isotopes of strontium, Sr-86 and Sr-88. Photoassociative transitions are driven with a laser red detuned by up to 1400 GHz from the S-1(0)-P-1(1) atomic resonance at 461 nm. A minimum in the transition amplitude for Sr-86 at -494 +/- 5 GHz allows us to determine the scattering lengths 610a(0)\< a(86)\< 2300a(0) for Sr-86 and a much smaller value of -1a(0)\< a(88)\< 13a(0) for Sr-88.

}, isbn = {0031-9007}, url = {://WOS:000233458500018}, author = {Mickelson, P. G. and Martinez, Y. N. and Saenz, A. D. and Nagel, S. B. and Y. C. Chen and Killian, T. C. and Pellegrini, P. and Cote, R.} } @article {1904, title = {Ultracold neutral plasmas}, journal = {Plasma Physics and Controlled Fusion}, volume = {47}, year = {2005}, note = {

Times Cited: 2 Si 5a 12th International Congress on Plasma Physics (ICPP2004) Oct 25-29, 2004 Nice, FRANCE Int Advisory Comm

}, month = {May}, pages = {A297-A306}, abstract = {

Ultracold neutral plasmas are formed by photo-ionizing laser-cooled atoms near the ionization threshold. Through the application of atomic physics techniques and diagnostics, these experiments stretch the boundaries of traditional neutral plasma physics. The electron temperature in these plasmas ranges from 1 to 1000 K and the ion temperature is around 1 K. The density can approach 10(11) cm(-3). Fundamental interest stems from the possibility of creating strongly coupled plasmas, but recombination, collective modes, and thermalization in these systems have also been studied. Optical absorption images of a strontium plasma, using the Sr+ S-2(1/2) -\> P-2(1/2) transition at 422 mn, depict the density profile of the plasma, and probe kinetics on a 50 ns time-scale. The Doppler-broadened ion absorption spectrum measures the ion velocity distribution, which gives an accurate measure of the ion dynamics in the first microsecond after photo-ionization.

}, isbn = {0741-3335}, url = {://WOS:000229591100022}, author = {Killian, T. C. and Y. C. Chen and Gupta, P. and Laha, S. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Saenz, A. D. and Simien, C. E.} } @article {1911, title = {Photoassociative spectroscopy at long range in ultracold strontium}, journal = {Physical Review Letters}, volume = {94}, year = {2005}, note = {

Times Cited: 30

}, month = {Mar 4}, abstract = {

We report photoassociative spectroscopy of Sr-88(2) in a magneto-optical trap operating on the S-1(0)--\>P-3(1) intercombination line at 689 nm. Photoassociative transitions are driven with a laser red detuned by 600-2400 MHz from the S-1(0)--\>P-1(1) atomic resonance at 461 nm. Photoassociation takes place at extremely large internuclear separation, and the photoassociative spectrum is strongly affected by relativistic retardation. A fit of the transition frequencies determines the P-1(1) atomic lifetime (tau=5.22+/-0.03 ns) and resolves a discrepancy between experiment and recent theoretical calculations.

}, isbn = {0031-9007}, url = {://WOS:000227386000023}, author = {Nagel, S. B. and Mickelson, P. G. and Saenz, A. D. and Martinez, Y. N. and Y. C. Chen and Killian, T. C. and Pellegrini, P. and Cote, R.} } @article {1903, title = {Absorption imaging and spectroscopy of ultracold neutral plasmas}, journal = {Journal of Physics B-Atomic Molecular and Optical Physics}, volume = {38}, year = {2005}, note = {

Times Cited: 2 Si International Workshop and Seminar on Rydberg Physics Apr 19-may 14, 2004 Max Planck Inst Physik Komplexer Sys, Dresden, GERMANY

}, month = {Jan 28}, pages = {S351-S362}, abstract = {

Absorption imaging and spectroscopy can probe the dynamics of an ultracold neutral plasma during the first few microseconds after its creation. Quantitative analysis of the data, however, is complicated by the inhomogeneous density distribution, expansion of the plasma and possible lack of global thermal equilibrium for the ions. In this paper, we describe methods for addressing these issues. Using simple assumptions about the underlying temperature distribution and ion motion, the Doppler-broadened absorption spectrum obtained from plasma images can be related to the average temperature in the plasma.

}, isbn = {0953-4075}, url = {://WOS:000227154000027}, author = {Killian, T. C. and Y. C. Chen and Gupta, P. and Laha, S. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Saenz, A. D. and Simien, C. E.} } @article {1914, title = {Absorption imaging of ultracold neutral plasmas}, journal = {Ieee Transactions on Plasma Science}, volume = {33}, year = {2005}, note = {

Times Cited: 0 Part 1

}, month = {Apr}, pages = {540-541}, abstract = {

We report optical absorption imaging of ultracold neutral plasmas. Imaging allows direct observation of the ion density profile and expansion of the plasma. The frequency dependence of the plasma{\textquoteright}s optical depth gives the ion absorption spectrum, which is broadened by the ion motion. We use the spectral width to monitor ion equilibration in the first 250 ns after plasma formation. On a microsecond time scale, we observe the radial acceleration of ions resulting from pressure exerted by the trapped electron gas.

}, isbn = {0093-3813}, url = {://WOS:000228407100159}, author = {Simien, C. E. and Y. C. Chen and Gupta, P. and Laha, S. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Killian, T. C.} } @article {1896, title = {Electron screening and kinetic-energy oscillations in a strongly coupled plasma}, journal = {Physical Review Letters}, volume = {93}, year = {2004}, note = {

Times Cited: 51

}, month = {Dec 31}, abstract = {

We study equilibration of strongly coupled ions in an ultracold neutral plasma produced by photoionizing laser-cooled and trapped atoms. By varying the electron temperature, we show that electron screening modifies the equilibrium ion temperature. Even with few electrons in a Debye sphere, the screening is well described by a model using a Yukawa ion-ion potential. We also observe damped oscillations of the ion kinetic energy that are a unique feature of equilibration of a strongly coupled plasma.

}, isbn = {0031-9007}, url = {://WOS:000226054600032}, author = {Y. C. Chen and Simien, C. E. and Laha, S. and Gupta, P. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Killian, T. C.} } @article {1878, title = {Using absorption imaging to study ion dynamics in an ultracold neutral plasma}, journal = {Physical Review Letters}, volume = {92}, number = {14}, year = {2004}, note = {

ISI Document Delivery No.: 815JBTimes Cited: 63Cited Reference Count: 22Cited References: Killian TC, 2003, J PHYS A-MATH GEN, V36, P6077, DOI 10.1088/0305-4470/36/22/333 Robicheaux F, 2003, PHYS PLASMAS, V10, P2217, DOI 10.1063/1.1573213 Nagel SB, 2003, PHYS REV A, V67, DOI 10.1103/PhysRevA.67.011401 Gabrielse G, 2002, PHYS REV LETT, V89 Amoretti M, 2002, NATURE, V419, P456, DOI 10.1038/nature01096 Mazevet S, 2002, PHYS REV LETT, V88, DOI 10.1103/PhysRevLett.88.055001 KLUZMIN SG, 2002, PHYS PLASMAS, V9, P3743 Murillo MS, 2001, PHYS REV LETT, V87, part. no., DOI 10.1103/PhysRevLett.87.115003 Killian TC, 2001, PHYS REV LETT, V86, P3759, DOI 10.1103/PhysRevLett.86.3759 Levinton FM, 2001, REV SCI INSTRUM, V72, P898, DOI 10.1063/1.1321005 Tkachev AN, 2000, QUANTUM ELECTRON+, V30, P1077, DOI 10.1070/QE2000v030n12ABEH001869 Robinson MP, 2000, PHYS REV LETT, V85, P4466, DOI 10.1103/PhysRevLett.85.4466 Murillo MS, 2000, PHYS REV LETT, V85, P2514, DOI 10.1103/PhysRevLett.85.2514 Kulin S, 2000, PHYS REV LETT, V85, P318, DOI 10.1103/PhysRevLett.85.318 Killian TC, 1999, PHYS REV LETT, V83, P4776, DOI 10.1103/PhysRevLett.83.4776 Mitchell TB, 1999, PHYS PLASMAS, V6, P1751, DOI 10.1063/1.873433 Dubin DHE, 1999, REV MOD PHYS, V71, P87, DOI 10.1103/RevModPhys.71.87 METCALF HJ, 1999, LASER COOLING TRAPPI FAROUKI RT, 1994, J CHEM PHYS, V101, P9885, DOI 10.1063/1.467955 ICHIMARU S, 1982, REV MOD PHYS, V54, P1017, DOI 10.1103/RevModPhys.54.1017 GRIEM HR, 1974, SPECTRAL LINE BROADE GREENE C, COMMUNICATIONSimien, CE Chen, YC Gupta, P Laha, S Martinez, YN Mickelson, PG Nagel, SB Killian, TCAMERICAN PHYSICAL SOCCOLLEGE PK

}, month = {Apr}, pages = {4}, type = {Article}, abstract = {

We report optical absorption imaging of ultracold neutral strontium plasmas. The ion absorption spectrum determined from the images is Doppler broadened and thus provides a quantitative measure of the ion kinetic energy. For the particular plasma conditions studied, ions heat rapidly as they equilibrate during the first 250 ns after plasma formation. Equilibration leaves ions on the border between the weakly coupled gaseous and strongly coupled liquid states. On a longer time scale of microseconds, pressure exerted by the trapped electron gas accelerates the ions radially.

}, keywords = {COLD, EXPANSION, LIQUIDS, RYDBERG ATOMS}, isbn = {0031-9007}, url = {://WOS:000221037500015}, author = {Simien, C. E. and Y. C. Chen and Gupta, P. and Laha, S. and Martinez, Y. N. and Mickelson, P. G. and Nagel, S. B. and Killian, T. C.} } @article {1873, title = {Quantization axes in coherent two-field spectroscopy}, journal = {Journal of the Optical Society of America B-Optical Physics}, volume = {19}, number = {8}, year = {2002}, note = {

ISI Document Delivery No.: 583VBTimes Cited: 0Cited Reference Count: 22Cited References: Chen YC, 2001, PHYS REV A, V64, DOI 10.1103/PhysRevA.64.053806 Chen YC, 2001, PHYS REV A, V63 Phillips DF, 2001, PHYS REV LETT, V86, P783, DOI 10.1103/PhysRevLett.86.783 Liu C, 2001, NATURE, V409, P490, DOI 10.1038/35054017 McGloin D, 2000, PHYS REV A, V62, part. no., DOI 10.1103/PhysRevA.62.053802 Chen YC, 2000, PHYS REV A, V61, DOI 10.1103/PhysRevA.61.053805 Wang S, 2000, PHYS REV A, V61 Akulshin AM, 1999, PHYS REV LETT, V83, P4277, DOI 10.1103/PhysRevLett.83.4277 Lukin MD, 1999, PHYS REV A, V60, P3225, DOI 10.1103/PhysRevA.60.3225 Taichenachev AV, 1999, JETP LETT+, V69, P819, DOI 10.1134/1.568096 Durrant AV, 1998, OPT COMMUN, V151, P136, DOI 10.1016/S0030-4018(98)00052-2 Marangos JP, 1998, J MOD OPTIC, V45, P471, DOI 10.1080/09500349808231909 Padmabandu GG, 1996, PHYS REV LETT, V76, P2053, DOI 10.1103/PhysRevLett.76.2053 Arimondo E, 1996, PROG OPTICS, V35, P257, DOI 10.1016/S0079-6638(08)70531-6 LI YQ, 1995, PHYS REV A, V51, pR2703 COURTOIS JY, 1994, PHYS REV LETT, V72, P3017, DOI 10.1103/PhysRevLett.72.3017 BOLLER KJ, 1991, PHYS REV LETT, V66, P2593, DOI 10.1103/PhysRevLett.66.2593 GRISON D, 1991, EUROPHYS LETT, V15, P149, DOI 10.1209/0295-5075/15/2/007 IMAMOGLU A, 1989, OPT LETT, V14, P1344, DOI 10.1364/OL.14.001344 KOCHAROVSKAYA OA, 1988, JETP LETT+, V48, P630 ASPECT A, 1988, PHYS REV LETT, V61, P826, DOI 10.1103/PhysRevLett.61.826 GRAY HR, 1978, OPT LETT, V3, P218, DOI 10.1364/OL.3.000218Chen, YW Lin, CW Chen, YC Yu, IAOPTICAL SOC AMERWASHINGTON

}, month = {Aug}, pages = {1917-1921}, type = {Article}, abstract = {

Coherent two-field spectroscopy calculations with different choices of the quantization (z) axis are compared. In a system driven by a strong coupling field and a weak probe field, alignment of the z axis along either the polarization direction of a linearly polarized coupling field or the propagation direction of a circularly polarized coupling field is shown to simplify the calculations and facilitate interpretation of the results. The advantages of a suitable choice of the z axis are highlighted with an example of a degenerate three-level system of electromagnetically induced transparency. (C) 2002 Optical Society of America.

}, keywords = {ATOMS, CESIUM, electromagnetically induced transparency, INTERACTING DARK RESONANCES, INTERFERENCE, LASER, POPULATION-INVERSION, STATES, STORAGE, vapor}, isbn = {0740-3224}, url = {://WOS:000177430100024}, author = {Y.W. Chen and Lin, C. W. and Y. C. Chen and Yu, I. A.} } @article {1893, title = {Simple technique for directly and accurately measuring the number of atoms in a magneto-optical trap}, journal = {Physical Review A}, volume = {64}, year = {2001}, note = {

Times Cited: 12

}, month = {Sep}, abstract = {

We have systematically studied a simple technique that accurately determines number of atoms in a magneto-optical trap, Absorption energy of a laser field that interacts with cold atoms is a direct measurement of atom number. The measured energy neither depends on the detuning, intensity, and polarization of the laser field nor is affected by other system parameters. Our work also demonstrates that such technique can be applied to study the phenomenon of coherent population trapping.

}, isbn = {1050-2947}, url = {://WOS:000170978600005}, author = {Y. C. Chen and Liao, Y. A. and Hsu, L. and Yu, I. A.} } @article {1867, title = {Observation of the quantum interference phenomenon induced by interacting dark resonances}, journal = {Physical Review A}, volume = {64}, number = {5}, year = {2001}, note = {

ISI Document Delivery No.: 490VJTimes Cited: 53Cited Reference Count: 21Cited References: Yan M, 2001, PHYS REV A, V64, DOI 10.1103/PhysRevA.64.013412 Chen YC, 2001, PHYS REV A, V63 Phillips DF, 2001, PHYS REV LETT, V86, P783, DOI 10.1103/PhysRevLett.86.783 Liu C, 2001, NATURE, V409, P490, DOI 10.1038/35054017 Lukin MD, 1999, PHYS REV A, V60, P3225, DOI 10.1103/PhysRevA.60.3225 Budker D, 1999, PHYS REV LETT, V83, P1767, DOI 10.1103/PhysRevLett.83.1767 Hau LV, 1999, NATURE, V397, P594, DOI 10.1038/17561 Harris SE, 1998, PHYS REV LETT, V81, P3611, DOI 10.1103/PhysRevLett.81.3611 KOCHAROVSKAYA OA, 1998, PISMA ESKP TEOR FIZ, V48, P581 Harris SE, 1997, PHYS TODAY, V50, P36, DOI 10.1063/1.881806 Padmabandu GG, 1996, PHYS REV LETT, V76, P2053, DOI 10.1103/PhysRevLett.76.2053 ARIMONDO E, 1996, PROGR OPTICS, V35, P258 BOLLER KJ, 1991, PHYS REV LETT, V66, P2539 MONROE C, 1990, PHYS REV LETT, V65, P1571, DOI 10.1103/PhysRevLett.65.1571 IMAMOGLU A, 1989, OPT LETT, V14, P1344, DOI 10.1364/OL.14.001344 ASPECT A, 1988, PHYS REV LETT, V61, P826, DOI 10.1103/PhysRevLett.61.826 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631 DALTON BJ, 1982, J PHYS B-AT MOL OPT, V15, P3997, DOI 10.1088/0022-3700/15/21/019 GRAY HR, 1978, OPT LETT, V3, P218, DOI 10.1364/OL.3.000218 ALZETTA G, 1976, NUOVO CIMENTO B, V36, P5, DOI 10.1007/BF02749417 ARIMONDO E, 1976, LETT NUOVO CIMENTO, V17, P333, DOI 10.1007/BF02746514Chen, YC Liao, YA Chiu, HY Su, JJ Yu, IAAMER PHYSICAL SOCCOLLEGE PK

}, month = {Nov}, pages = {5}, type = {Article}, abstract = {

We report an experimental observation of narrow and high-contrast spectra. which are induced by interacting dark resonances and have been predicted in Phys. Rev. A 60, 3225 (1999). Spectra are measured with cold (87)Rb atoms produced by a magneto-optical trap. In this experimental system, a coupling laser and a weak probe laser form a three-level Lambda -type configuration of electromagnetically induced transparency (EIT); a microwave drives a magnetic-dipole transition between the fourth level and the ground state that is coupled with the excited state by the coupling laser. The observed spectral profile of probe absorption exhibits a very sharp peak emerging inside a narrow EIT dip. Such spectral feature provides more opportunities in manipulating atomic-optical response.

}, keywords = {ATOMS, INVERSION, light, vapor, VELOCITY}, isbn = {1050-2947}, url = {://WOS:000172074200090}, author = {Y. C. Chen and Liao, Y. A. and Chiu, H. Y. and Su, J. J. and Yu, I. A.} } @article {1864, title = {Pump-probe spectroscopy of cold Rb-87 atoms in various polarization configurations}, journal = {Physical Review A}, volume = {63}, number = {4}, year = {2001}, note = {

ISI Document Delivery No.: 422AGTimes Cited: 21Cited Reference Count: 31Cited References: Chen YC, 2000, PHYS REV A, V61, DOI 10.1103/PhysRevA.61.053805 di Stefano A, 1999, APPL PHYS B-LASERS O, V69, P263, DOI 10.1007/s003400050806 Lezama A, 1999, PHYS REV A, V59, P4732, DOI 10.1103/PhysRevA.59.4732 Sorensen JL, 1998, OPT LETT, V23, P25, DOI 10.1364/OL.23.000025 Snadden MJ, 1997, J OPT SOC AM B, V14, P544, DOI 10.1364/JOSAB.14.000544 Mitsunaga M, 1996, J OPT SOC AM B, V13, P2696, DOI 10.1364/JOSAB.13.002696 Guibal S, 1996, OPT COMMUN, V131, P61, DOI 10.1016/0030-4018(96)00268-4 Ye J, 1996, OPT LETT, V21, P1280, DOI 10.1364/OL.21.001280 Snadden MJ, 1996, OPT COMMUN, V125, P70, DOI 10.1016/0030-4018(95)00711-3 KUNZE S, 1996, LASER SPECTROSCOPY, P138 BERMAN PR, 1995, PHYS REV A, V51, P3947, DOI 10.1103/PhysRevA.51.3947 GEORGIADES NP, 1994, OPT LETT, V19, P1474, DOI 10.1364/OL.19.001474 MEACHER DR, 1994, PHYS REV A, V50, pR1992 COURTOIS JY, 1994, PHYS REV LETT, V72, P3017, DOI 10.1103/PhysRevLett.72.3017 GUO J, 1994, PHYS REV A, V49, P3934, DOI 10.1103/PhysRevA.49.3934 SINCLAIR AG, 1994, OPT COMMUN, V106, P207, DOI 10.1016/0030-4018(94)90323-9 FOX RW, 1993, OPT LETT, V18, P1456, DOI 10.1364/OL.18.001456 GUO J, 1993, PHYS REV A, V47, P4128, DOI 10.1103/PhysRevA.47.4128 COURTOIS JY, 1992, PHYS REV A, V46, P7060, DOI 10.1103/PhysRevA.46.7060 LOUNIS B, 1992, PHYS REV LETT, V69, P3029, DOI 10.1103/PhysRevLett.69.3029 GUO J, 1992, PHYS REV A, V46, P1426, DOI 10.1103/PhysRevA.46.1426 JESSEN PS, 1992, PHYS REV LETT, V69, P49, DOI 10.1103/PhysRevLett.69.49 VERKERK P, 1992, PHYS REV LETT, V68, P3861, DOI 10.1103/PhysRevLett.68.3861 VALLET M, 1992, OPT COMMUN, V87, P340, DOI 10.1016/0030-4018(92)90481-6 TABOSA JWR, 1991, PHYS REV LETT, V66, P3245, DOI 10.1103/PhysRevLett.66.3245 GRISON D, 1991, EUROPHYS LETT, V15, P149, DOI 10.1209/0295-5075/15/2/007 MONROE C, 1990, PHYS REV LETT, V65, P1571, DOI 10.1103/PhysRevLett.65.1571 GRYNBERG G, 1990, PHYS REV LETT, V65, P701, DOI 10.1103/PhysRevLett.65.701 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631 DALTON BJ, 1982, J PHYS B-AT MOL OPT, V15, P3997, DOI 10.1088/0022-3700/15/21/019 COHENTANNOUDJI C, 1977, FRONTIER LASER SPECT, V1, P28Chen, YC Chen, YW Su, JJ Huang, JY Yu, IAAMERICAN PHYSICAL SOCCOLLEGE PK

}, month = {Apr}, pages = {11}, type = {Article}, abstract = {

We investigate systematically pump-probe spectroscopy of cold Rb-87 atoms produced by a magneto-optical trap. The pump-probe spectra are measured without the presence of the trapping beams or any optical molasses. Various polarization configurations of the probe and pump fields result in very different spectra of probe absorption. The observed spectra exhibit a dispersive profile, a dispersionlike profile, a Lorentzian profile, or a dispersive profile plus a Lorentzian profile. The widths of all the spectral profiles are narrower than the natural linewidth of the excited state. Our work clarifies the mechanisms behind these different spectral profiles and provides essential information for the pump-probe spectroscopy of cold atoms.

}, keywords = {2-PHOTON SPECTROSCOPY, ATOMS, BEAMS, CESIUM ATOMS, DIMENSIONAL OPTICAL MOLASSES, LASER, MAGNETOOPTICAL, NONLINEAR SPECTROSCOPY, RB, RECOIL-INDUCED RESONANCES, sodium, TRAP}, isbn = {1050-2947}, url = {://WOS:000168095300114}, author = {Y. C. Chen and Y.W. Chen and Su, J. J. and Huang, J. Y. and Yu, I. A.} } @article {1859, title = {Effect of the trapping laser linewidth on the atom number in a magneto-optical trap}, journal = {Chinese Journal of Physics}, volume = {38}, number = {5}, year = {2000}, note = {

ISI Document Delivery No.: 363XZTimes Cited: 1Cited Reference Count: 10Cited References: Chen YC, 2000, PHYS REV A, V61, DOI 10.1103/PhysRevA.61.053805 TUNG SK, 2000, J PHYS TAIPEI, V38, P395 Snadden MJ, 1997, OPT LETT, V22, P892, DOI 10.1364/OL.22.000892 Gabbanini C, 1997, EUROPHYS LETT, V37, P251, DOI 10.1209/epl/i1997-00139-0 Ye J, 1996, OPT LETT, V21, P1280, DOI 10.1364/OL.21.001280 TOWNSEND CG, 1995, PHYS REV A, V52, P1423, DOI 10.1103/PhysRevA.52.1423 LINDQUIST K, 1992, PHYS REV A, V46, P4082, DOI 10.1103/PhysRevA.46.4082 MONROE C, 1991, OPT LETT, V16, P50, DOI 10.1364/OL.16.000050 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631 GOLDBERG L, 1983, ELECTRON LETT, V19, P491, DOI 10.1049/el:19830333Chen, YC Lin, WB Hsue, HC Hsu, L Yu, IAPHYSICAL SOC REPUBLIC CHINATAIPEI

}, month = {Oct}, pages = {920-926}, type = {Article}, abstract = {

We have experimentally studied the effect of the trapping laser linewidth on the number of capped atoms in a magneto-optical trap (MOT). Our data show that a significant number of the atoms can still be trapped in the MOT, even when the trapping laser linewidth is larger than the natural linewidth of the excited state of the driving transition.

}, keywords = {VAPOR-CELL}, isbn = {0577-9073}, url = {://WOS:000089864100004}, author = {Y. C. Chen and Lin, W. B. and Hsue, H. C. and Hsu, L. and Yu, I. A.} } @article {1858, title = {Role of degenerate Zeeman levels in electromagnetically induced transparency}, journal = {Physical Review A}, volume = {61}, number = {5}, year = {2000}, note = {

ISI Document Delivery No.: 312QDTimes Cited: 24Cited Reference Count: 27Cited References: Akulshin AM, 1999, PHYS REV LETT, V83, P4277, DOI 10.1103/PhysRevLett.83.4277 Kitching J, 1999, PHYS REV A, V59, P4685, DOI 10.1103/PhysRevA.59.4685 Lezama A, 1999, PHYS REV A, V59, P4732, DOI 10.1103/PhysRevA.59.4732 Mitsunaga M, 1999, PHYS REV A, V59, P4773, DOI 10.1103/PhysRevA.59.4773 Hau LV, 1999, NATURE, V397, P594, DOI 10.1038/17561 Chen HX, 1998, PHYS REV A, V58, P1545, DOI 10.1103/PhysRevA.58.1545 Durrant AV, 1998, OPT COMMUN, V151, P136, DOI 10.1016/S0030-4018(98)00052-2 Akulshin AM, 1998, PHYS REV A, V57, P2996, DOI 10.1103/PhysRevA.57.2996 Marangos JP, 1998, J MOD OPTIC, V45, P471, DOI 10.1080/09500349808231909 Cataliotti FS, 1997, PHYS REV A, V56, P2221, DOI 10.1103/PhysRevA.56.2221 Hopkins SA, 1997, OPT COMMUN, V138, P185, DOI 10.1016/S0030-4018(97)00030-8 vanderVeldt T, 1997, OPT COMMUN, V137, P420, DOI 10.1016/S0030-4018(96)00797-3 Mitsunaga M, 1996, J OPT SOC AM B, V13, P2696, DOI 10.1364/JOSAB.13.002696 Li YQ, 1996, OPT LETT, V21, P1064, DOI 10.1364/OL.21.001064 Grynberg G, 1996, PHYS REV A, V54, P776, DOI 10.1103/PhysRevA.54.776 Padmabandu GG, 1996, PHYS REV LETT, V76, P2053, DOI 10.1103/PhysRevLett.76.2053 Ling HY, 1996, PHYS REV A, V53, P1014, DOI 10.1103/PhysRevA.53.1014 ARIMONDO E, 1996, PROGR OPTICS, V35, P258 GEABANACLOCHE J, 1995, PHYS REV A, V51, P576, DOI 10.1103/PhysRevA.51.576 XIAO M, 1995, PHYS REV LETT, V74, P66 HARRIS SE, 1992, PHYS REV A, V46, P29 GRISON D, 1991, EUROPHYS LETT, V15, P149, DOI 10.1209/0295-5075/15/2/007 BOLLER KJ, 1991, PHYS REV LETT, V66, P2539 MONROE C, 1990, PHYS REV LETT, V65, P1571, DOI 10.1103/PhysRevLett.65.1571 HARRIS SE, 1990, PHYS REV LETT, V64, P1107, DOI 10.1103/PhysRevLett.64.1107 IMAMOGLU A, 1989, OPT LETT, V14, P1344, DOI 10.1364/OL.14.001344 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631Chen, YC Lin, CW Yu, IAAMERICAN PHYSICAL SOCCOLLEGE PK

}, month = {May}, pages = {6}, type = {Article}, abstract = {

We have observed various Lambda-type electromagnetically induced transparency (EIT) spectra in laser-cooled Rb-87 atoms of different laser polarization configurations. Unexpected profiles occur in the EIT spectra. We have found the degenerate Zeeman sublevels are responsible for these profiles. The experimental data are in good agreement with the results from the theoretical calculation which takes into account all the 13 Zeeman levels in the Lambda system. Our study demonstrates that Zeeman sublevels play important roles in quantum interference phenomena such as EIT and amplification without population inversion (AWI), and should be taken into account in the analysis of these phenomena.

}, keywords = {ABSORPTION, ATOMS, COLD, DISPERSION, INTERFERENCE, LASER-COOLED RUBIDIUM, POPULATION-INVERSION, RB VAPOR, sodium, SPECTROSCOPY, TRAPPED ATOMS}, isbn = {1050-2947}, url = {://WOS:000086953200103}, author = {Y. C. Chen and Lin, C. W. and Yu, I. A.} } @article {1863, title = {Cooling atoms below 100 mu K}, journal = {Chinese Journal of Physics}, volume = {38}, number = {2}, year = {2000}, note = {

ISI Document Delivery No.: 308FTTimes Cited: 0Cited Reference Count: 9Cited References: Snadden MJ, 1997, OPT LETT, V22, P892, DOI 10.1364/OL.22.000892 Ye J, 1996, OPT LETT, V21, P1280, DOI 10.1364/OL.21.001280 ANDERSEN ML, 1995, GENDER SOC, V9, P269, DOI 10.1177/089124395009003001 MONROE C, 1990, PHYS REV LETT, V65, P1571, DOI 10.1103/PhysRevLett.65.1571 CASTIN Y, 1989, J OPT SOC AM B, V6, P2046, DOI 10.1364/JOSAB.6.002046 DALIBARD J, 1989, J OPT SOC AM B, V6, P2023, DOI 10.1364/JOSAB.6.002023 UNGAR PJ, 1989, J OPT SOC AM B, V6, P2058, DOI 10.1364/JOSAB.6.002058 RAAB EL, 1987, PHYS REV LETT, V59, P2631, DOI 10.1103/PhysRevLett.59.2631 CHU S, 1985, PHYS REV LETT, V55, P48, DOI 10.1103/PhysRevLett.55.48Tung, SK Chen, YC Lin, CW Hsu, L Yu, IATaiwan International Conference on Superconductivity (TICS 99)/6th Workshop on Low Temperature Physics (WLTP6)AUG 17-20, 1999KENTING, TAIWANNatl Sun Yat Sen Univ, Kaohsiung, Dept PhysPHYSICAL SOC REPUBLIC CHINATAIPEIPart 2

}, month = {Apr}, pages = {395-399}, type = {Article; Proceedings Paper}, abstract = {

We capture Rb-87 atoms from room-temperature background vapor with a magneto-optical trap (MOT). The temperature of the atoms in the MOT is 320 mu K as the result of Doppler cooling. We further employ polarization gradient cooling to lower atom temperature. The factors that can affect the performance of polarization gradient cooling have been systematically studied. An atom temperature of 75 mu K has been reached with the optimized conditions. Temperatures are measured by the release and recapture method and the time of flight method. Such cold atoms are ready for the evaporative cooling which will finally realize the Bose-Einstein condensation.

}, keywords = {LASER, LIMIT, RADIATION PRESSURE}, isbn = {0577-9073}, url = {://WOS:000086700400030}, author = {Tung, S. K. and Y. C. Chen and Lin, C. W. and Hsu, L. and Yu, I. A.} } @article {1901, title = {ION-SIZE EFFECT ON TN IN (R1-XPRX)BA2CU3O7-Y SYSTEMS (R=LU, YB, TM, ER, Y, HO, DY, GD, EU, SM, AND ND)}, journal = {Physical Review B}, volume = {49}, year = {1994}, note = {

Times Cited: 52

}, month = {Jun 1}, pages = {15993-15999}, abstract = {

We conducted a detailed study of the structure and magnetic properties of (R1-xPrx)Ba2Cu3O7 sintered samples, where R = Lu, Yb, Tm, Er, Y, Ho, Dy, Gd, Eu, Sm, and Nd for x = 0.5-1.0. We found that the temperature dependence of the dc susceptibility follows the Curie-Weiss law in the temperature range 20-300 K and the paramagnetism of the Pr and R sublattices exist independently of one another. The antiferromagnetic ordering temperature T(N) of Pr ions decreases monotonically with increasing R concentration (1-x). At a given x, T(N) is R-ion-size dependent. The slope in the T(N) vs x curve is steeper for ions with smaller ionic radii. The observed results are interpreted in terms of the hybridization between the local states of the Pr ion and the valence-band states of the CuO2 planes.

}, isbn = {0163-1829}, url = {://WOS:A1994NR70100063}, author = {Guan, W. Y. and Xu, Y. H. and Sheen, S. R. and Y. C. Chen and Wei, J. Y. T. and Lai, HF and Wu, M. K. and Ho, J. C.} } @article {1842, title = {ION-SIZE EFFECT ON T(M) AND T(C) IN (R1-XPR(X))BA2CU3O7 SYSTEMS (R = YB, TM, ER, HO, DY, GD, EU, SM, ND AND Y)}, journal = {Physica C-Superconductivity and Its Applications}, volume = {209}, number = {1-3}, year = {1993}, note = {

ISI Document Delivery No.: KZ521Times Cited: 25Cited Reference Count: 14Cited References: XU YH, 1992, PHYS REV B, V45, P3176, DOI 10.1103/PhysRevB.45.3176 NIEVA G, 1991, PHYS REV B, V44, P6999, DOI 10.1103/PhysRevB.44.6999 XU YH, 1991, SOLID STATE COMMUN, V80, P105, DOI 10.1016/0038-1098(91)90296-8 GHAMATY S, 1991, PHYS REV B, V43, P5430, DOI 10.1103/PhysRevB.43.5430 DAS I, 1991, PHYSICA C, V173, P331, DOI 10.1016/0921-4534(91)90732-E YANG HD, 1990, PHYSICA B, V165, P1193 FELNER I, 1989, PHYS REV B, V40, P6739, DOI 10.1103/PhysRevB.40.6739 KEBEDE A, 1989, PHYS REV B, V40, P4453, DOI 10.1103/PhysRevB.40.4453 LI WH, 1989, PHYS REV B, V40, P5300, DOI 10.1103/PhysRevB.40.5300 XU YH, 1988, APPL PHYS LETT, V53, P334, DOI 10.1063/1.100600 SODERHOLM L, 1987, NATURE, V328, P604, DOI 10.1038/328604a0 HO JC, 1987, SOLID STATE COMMUN, V63, P711, DOI 10.1016/0038-1098(87)90115-3 YU J, 1987, PHYS LETT A, V122, P203, DOI 10.1016/0375-9601(87)90807-3 NAKAMARA F, SOLID STATE COMMUN, V65, P1339GUAN, WY CHEN, YC WEI, JYT XU, YH WU, MK2ND ISRAELI INTERNATIONAL CONF ON HIGH-TEMPERATURE SUPERCONDUCTIVITYJAN 04-08, 1992EILAT, ISRAELCNRS, ITALIAN NATL RES COUNCIL, BRIT COUNCIL, USA, EUROPEAN OFF AEROSP RES \& DEV, ISRAELI MINIST FOREIGN AFFAIRS, TEL AVIV UNIV, OREN FAMILY CHAIR EXPTL SOLID STATE PHYSELSEVIER SCIENCE BVAMSTERDAM

}, month = {Apr}, pages = {19-22}, type = {Article; Proceedings Paper}, abstract = {

The magnetic ordering temperatures T(m) of Pr ions in (R1-xPrx)Ba2Cu3O7 systems (R = Yb, Tm, Er, Ho, Dy, Gd, Eu, Sm, Nd and Y) with x = 0.5 - 1.0 were measured. We observe that T(m) decreases monotonically with increasing R concentration. At constant x, T(m) is R ion-size dependent. The slope in the T(m) vs. x is steeper for ion with smaller ionic radius. In comparison with the ion-size effect on the superconducting transition temperatures T(c) in these systems, the observed results can be qualitatively interpreted in terms of the hybridization between the local states of Pr ion and the conduction band states of the CuO2 planes.

}, keywords = {MAGNETIC ORDER, PR, SUPERCONDUCTIVITY, YBA2CU3O7-DELTA}, isbn = {0921-4534}, url = {://WOS:A1993KZ52100007}, author = {Guan, W. Y. and Y. C. Chen and Wei, J. Y. T. and Xu, Y. H. and Wu, M. K.} }