2-PHOTON COHERENT-TRANSIENT MEASUREMENT OF THE NONRADIATIVE COLLISIONLESS DEPHASING RATE IN SF6 VIA DOPPLER-FREE DEGENERATE 4-WAVE MIXING

被引:43
作者
STEEL, DG
LAM, JF
机构
[1] Hughes Research Laboratories, Malibu
关键词
D O I
10.1103/PhysRevLett.43.1588
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter reports, for the first time, an experimental measurement of the collision-less dephasing time of the ν3=2 level in SF6 using Doppler-free two-photon degenerate four-wave mixing. The measurement is performed in the time domain by use of a short-pulse CO2 laser to establish a molecular two-photon coherent state. The coherent state is then probed as a function of time to yield a dephasing time of 1.8 nsec which is related to intramolecular dephasing rates. © 1979 The American Physical Society.
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页码:1588 / 1591
页数:4
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