Absorption imaging and spectroscopy of ultracold neutral plasmas

Killian, TC, Chen YC, Gupta P, Laha S, Martinez YN, Mickelson PG, Nagel SB, Saenz AD, Simien CE.  2005.  Absorption imaging and spectroscopy of ultracold neutral plasmas, Jan 28. Journal of Physics B-Atomic Molecular and Optical Physics. 38:S351-S362.


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.


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