Sheet Fluorescence and Annular Analysis of Ultracold Neutral Plasmas
- Rice University, Department of Physics and Astronomy, 6100 Main St., Houston, Texas, 77005 (United States)
Annular analysis of fluorescence imaging measurements on Ultracold Neutral Plasmas (UNPs) is demonstrated. Spatially-resolved fluorescence imaging of the strontium ions produces a spectrum that is Doppler-broadened due to the thermal ion velocity and shifted due to the ion expansion velocity. The fluorescence excitation beam is spatially narrowed into a sheet, allowing for localized analysis of ion temperatures within a volume of the plasma with small density variation. Annular analysis of fluorescence images permits an enhanced signal-to-noise ratio compared to previous fluorescence measurements done in strontium UNPs. Using this technique and analysis, plasma ion temperatures are measured and shown to display characteristics of plasmas with strong coupling such as disorder induced heating and kinetic energy oscillations.
- OSTI ID:
- 21300446
- Journal Information:
- AIP Conference Proceedings, Vol. 1114, Issue 1; Conference: Non-neutral plasma physics VII: Workshop on non-neutral plasmas 2008, New York, NY (United States), 16-20 Jun 2008; Other Information: DOI: 10.1063/1.3122289; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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