HIGH-RESOLUTION DEGENERATE 4-WAVE-MIXING SPECTRAL PROFILES OF OH

被引：28

作者：

BROWN, MS ^{[1
]}

RAHN, LA ^{[1
]}

DREIER, T ^{[1
]}

机构：

[1] PHYS CHEM INST, W-6900 HEIDELBERG 1, GERMANY

来源：

OPTICS LETTERS | 1992年 / 17卷 / 01期

关键词：

D O I：

10.1364/OL.17.000076

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High-resolution degenerate four-wave mixing spectra of the R1(9) A2-SIGMA+ --> X2-PI(0,0) transition of OH have been measured in a hydrogen/oxygen flame at atmospheric pressure where the Doppler and homogeneous linewidths are of comparable magnitude. The observed sub-Lorentzian Doppler-free line profile is fit well by existing perturbative models by using homogeneous broadening consistent with two-photon absorption measurements. Power broadening of the spectral profile with increasing pump-beam intensity was observed and is compared with predictions from a nonperturbative two-level model.

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页码：76 / 78

页数：3

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