Measurement and simulation of laser-induced fluorescence from nonequilibrium ultracold neutral plasmas
- 25 September 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 80 (3), 033415
- https://doi.org/10.1103/physreva.80.033415
Abstract
We report measurements and simulations of laser-induced fluorescence in ultracold neutral plasmas. We focus on the earliest times, when the plasma equilibrium is evolving and before the plasma expands. In the simulation, the ions interact via the Yukawa potential in a small cell with wrapped boundary conditions. We solve the optical Bloch equation for each ion in the simulation as a function of time. Both the simulation and experiment show the initial increase in ion fluorescence, disorder-induced heating, and coherent oscillation of the rms ion velocity. Detailed modeling of the fluorescence signal makes it possible to use fluorescence spectroscopy to probe ion dynamics in ultracold and strongly coupled plasmas.Keywords
This publication has 28 references indexed in Scilit:
- Ultracold Neutral PlasmasScience, 2007
- Observation of Collective Modes of Ultracold PlasmasPhysical Review Letters, 2006
- Fluorescence Measurements Of Expanding Strongly Coupled Neutral PlasmasPhysical Review Letters, 2005
- Using Absorption Imaging to Study Ion Dynamics in an Ultracold Neutral PlasmaPhysical Review Letters, 2004
- Numerical simulation of ultracold plasmasPhysics of Plasmas, 2002
- Numerical Simulation of Ultracold Plasmas: How Rapid Intrinsic Heating Limits the Development of CorrelationPhysical Review Letters, 2002
- Evolution of Ultracold Neutral PlasmasPhysical Review Letters, 2002
- Formation of Rydberg Atoms in an Expanding Ultracold Neutral PlasmaPhysical Review Letters, 2001
- Plasma Oscillations and Expansion of an Ultracold Neutral PlasmaPhysical Review Letters, 2000
- Creation of an Ultracold Neutral PlasmaPhysical Review Letters, 1999