Laser induced fluorescence in a pulsed argon plasma

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

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


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
Issue number2
StatePublished - Jan 25 2005

All Science Journal Classification (ASJC) codes

  • Instrumentation


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