Abstract

It is demonstrated that the optogalvanic effect in a sodium hollow cathode discharge is a sensitive detector specific to the intracavity absorption of sodium atoms in a flame. In this feasibility study the variation of the optogalvanic signal vs the sodium concentration in the flame indicated a detection limit below 1 ng/ml. The sensitivity can be easily improved, and this technique is applicable to other atoms and Doppler-free intermodulation spectroscopic detection methods.

© 1981 Optical Society of America

Optogalvanic resonance detection of pulsed dye laser atomic absorption

Mark A. Nippoldt and Robert B. Green
Appl. Opt. 20(18) 3206-3210 (1981)

Optogalvanic effect in a hollow cathode discharge with nonlaser sources

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Quantitative detection of atomic absorption by intracavity dye-laser quenching

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Frequency and amplitude modulation of a cw-dye laser for measuring hyperfine frequency separations in optogalvanic spectra of ¹³⁹La I

P. V. Kiran Kumar and G. Srikanth
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