Laser-induced gratings in the gas phase excited by Raman-active transitions

被引：12

作者：

Kozlov, DN ^{[1
]}

Bombach, R ^{[1
]}

Hemmerling, B ^{[1
]}

Hubschmid, W ^{[1
]}

机构：

[1] PAUL SCHERRER INST,CH-5232 VILLIGEN,SWITZERLAND

来源：

OPTICS LETTERS | 1997年 / 22卷 / 01期

关键词：

D O I：

10.1364/OL.22.000046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Sire report on a new time-resolved coherent Raman technique that is based on the generation of thermal gratings following a population change among molecular levels that is induced by stimulated Raman pumping. This is achieved by use of spatially and temporally overlapping intensity interference patterns generated independently by two lasers. When this technique is used in carbon dioxide, making use of transitions that belong to the Q branches of the v(1)/2y Fermi dyad, it is possible to investigate molecular energy transfer processes. A further unique feature of this method is spectral resolution that is better than that achieved by coherent anti-Stokes Raman scattering. (C) 1997 Optical Society of America

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页码：46 / 48

页数：3

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