Laser induced fluorescence in a pulsed argon plasma

Earl Scime, Costel Biloiu, Christopher Compton, Forrest Doss, Daniel Venture, John Heard, Edgar Choueiri, Rostislav Spektor

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Abstract

A time-resolved laser induced fluorescence (LIF) technique for pulsed argon plasmas is described. A low power, tunable diode laser pumps a three level Ar II transition sequence at a wavelength of 668.6138 nm. With a standard LIF system designed for steady-state plasmas (e.g., 4 kHz optical chopper, 20 kHz band-width detector, and a lock-in amplifier), we demonstrate that the evolution of the ion velocity distribution can be resolved with a time resolution of 1 ms through a combination of time-series averaging and post-acquisition digital signal processing.

Original languageEnglish (US)
Article number026107
Pages (from-to)026107-1-026107-3
JournalReview of Scientific Instruments
Volume76
Issue number2
DOIs
StatePublished - Jan 25 2005

All Science Journal Classification (ASJC) codes

  • Instrumentation

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  • Cite this

    Scime, E., Biloiu, C., Compton, C., Doss, F., Venture, D., Heard, J., Choueiri, E., & Spektor, R. (2005). Laser induced fluorescence in a pulsed argon plasma. Review of Scientific Instruments, 76(2), 026107-1-026107-3. [026107]. https://doi.org/10.1063/1.1848491