Doppler-free continuous-wave phase-conjugate spectrum of SF6 by resonant degenerate four-wave mixing at 10.6 microm.
A phase-conjugate signal has been obtained in SF(6) with a peak reflectivity of 1.2 x 10(-3) by using a cw CO(2) laser operating on the P(16) line. The degenerate four-wave mixing spectrum exhibits a Doppler-free structure with 2-MHz resolution. When the reflectivity spectrum is compared with the saturated-absorption spectrum, matching peaks in the reflectivity spectrum are found over an 80-MHz bandwidth.
Aubourg
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Quantel, 17, Avenue de l'Atlantique, Z. I. Courtoboeuf, 91402 Orsoy, France.
Bettini
J P
JP
Agrawal
G P
GP
Cottin
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P
Guérin
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D
Meunier
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O
Boulnois
J L
JL