Quantitative characteristics of pressure-induced degenerate frequency resonance in four-wave mixing with continuous-wave laser beams
- 1 July 1981
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 6 (7), 348-350
- https://doi.org/10.1364/ol.6.000348
Abstract
The linewidth and intensity of the four-wave degenerate mixing signal in Na vapor have been observed as functions of He buffer-gas pressure with cw single-mode dye-laser beams. The width is independent of He pressure, and a quantitative comparison with theory is made. We also report the observation of a new effect, a four-wave mixing Raman-type resonance between two equally populated hyperfine levels.Keywords
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