DOPPLER-FREE 2-PHOTON SPECTRUM OF SF6 FOR METROLOGICAL PURPOSES

Authors
HERLEMONT F KHELKHAL M LEGRAND J PIERRE G
Citation
F. Herlemont et al., DOPPLER-FREE 2-PHOTON SPECTRUM OF SF6 FOR METROLOGICAL PURPOSES, Optics letters, 23(12), 1998, pp. 957-959
Citations number
28
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
23
Issue
12
Year of publication
1998
Pages
957 - 959
Database
ISI
SICI code
0146-9592(1998)23:12<957:D2SOSF>2.0.ZU;2-H
Abstract
We report on our systematic investigation of strong Doppler-free two-p hoton absorption in the middle infrared. The absorption frequencies fo r two counterpropagating waves of identical frequencies are predicted. Five of these transitions were observed with sub-Doppler resolution w ith a sideband CO2 laser and were measured with 10-kHz accuracy. Knowl edge of these strong two-photon absorptions frequencies will allow the improvement of secondary frequency standards in the infrared. (C) 199 8 Optical Society of America.