Atomic fluorescence of sodium under continuous-wave laser excitation
- 1 July 1977
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 48 (7) , 2676-2680
- https://doi.org/10.1063/1.324136
Abstract
The tunable continuous‐wave (cw) dye laser has been shown to be capable of producing saturation conditions for sodium in an air‐acetylene flame. The experimental evidence indicates that the sodium doublet is a reasonably good approximation of a two‐level system. Saturation of the sodium 589.6‐nm line was observed at laser spectral irradiances of 1013 erg s−1 cm−2 nm−1 and greater. Measurements of the absolute‐maximum fluorescence radiance under saturation conditions have been used to measure sodium concentration profiles in air‐hydrogen and air‐acetylene flames with spatial resolution on the order of 0.01 cm.This publication has 9 references indexed in Scilit:
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