engleski

Pseudosonic wave detection in laser spectrometry

Frequency changes of plasma oscillations in the kHz range (pseudosonic waves) induced by resonant laser excitation of species in low-pressure dc discharges are used for detection of 21Ne in pure Ne. The analytical capability and the limitations of this novel spectroscopic technique have been studied in noble gas discharges.

laser spectrometry; plasma oscillations; pseudosonic waves; optogalvanic effect; wavelength-modulated atomic absorption

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