Title :
Optical selection of slow molecules in Doppler-free two-photon spectroscopy
Author :
Chardonnet, C. ; Durand, P.E. ; Nogues, G. ; Bernard, V. ; Amy-Klein, A.
Author_Institution :
Lab. de Phys. des Lasers, Univ. de Paris-Nord, Villetaneuse, France
Abstract :
We observed a width of 280 Hz for a SF/sub 6/ line in Doppler-free two-photon spectroscopy at 28.4 THz. This is 25 times less than the ´transit width´ and reveals the optical selection of slow molecules. This opens a new route for frequency standards in the infrared region.
Keywords :
frequency measurement; infrared spectroscopy; measurement standards; sulphur compounds; two-photon spectroscopy; 28.4 THz; 280 Hz; SF/sub 6/; SF/sub 6/ line; frequency standards; infrared region; optical selection; slow molecules; two-photon spectroscopy; Absorption; Atomic beams; Atomic measurements; Frequency; Laser beams; Resonance; Shape; Signal resolution; Spectroscopy; Sulfur hexafluoride;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547400
