1.
Opt Lett
; 6(7): 348-50, 1981 Jul 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19701428
RESUMO
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.