Femtosecond CARS on H2

被引：112

作者：

Lang, T ^{[1
]}

Kompa, KL ^{[1
]}

Motzkus, M ^{[1
]}

机构：

[1] Max Planck Inst Quantenopt, D-85748 Garching, Germany

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00787-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Time-resolved non-resonant CARS (coherent anti-Stokes Raman spectroscopy) is applied to probe H-2 in the gas phase with femtosecond time resolution. The experimental transients show detailed beating structures, reflecting the rotational dynamics of all thermally populated ground state J levels with high fidelity. Modelling of the experimental data yields temperatures and pressures with high resolution. The good agreement with values determined by frequency-domain experiments demonstrates the suitability of this method for the determination of J-dependent collisional-broadening and Line-shifting coefficients in gaseous mixtures at high pressures and temperatures, where frequency-domain CARS spectra are difficult to model. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：65 / 72

页数：8

共 24 条

[1] CARS IN COMBUSTION - PROSPECTS AND PROBLEMS [J].