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Argon ion laser-induced fluorescence with diode lasers
Review of Scientific Instruments
Diode lasers have been used for ion temperature measurements in ArII plasmas by finding new laser-induced fluorescence ͑LIF͒ schemes suited to the present range of available wavelengths. The new LIF schemes require excitation at 664, 669, and 689 nm, all near industry-standard wavelengths. Conventional LIF measurements performed by dye lasers in ArII use 611.66 nm in vacuum, shorter than any commercially available red diode laser line, and depend on the population of the 3dЈ 2 G 9/2 metastabledoi:10.1063/1.1148472 fatcat:xqhkk5x27ngbvpngfr4cbjfpaa