Direct measurement of rotationally resolved H2 Q-branch Raman coherence lifetimes using time-resolved picosecond coherent anti-Stokes Raman scattering

被引：52

作者：

Kulatilaka, Waruna D. ^{[1
]}

Hsu, Paul S. ^{[1
]}

Stauffer, Hans U. ^{[1
]}

Gord, James R. ^{[2
]}

Roy, Sukesh ^{[1
]}

机构：

[1] Spectral Energies LLC, Dayton, OH 45431 USA

[2] USAF, Res Lab, Prop Directorate, Wright Patterson AFB, OH 45433 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 08期

关键词：

CARS THERMOMETRY; COEFFICIENTS; LINEWIDTHS; PRESSURE;

D O I：

10.1063/1.3483871

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report direct measurement of H-2 Q-branch Raman coherence lifetimes using time-resolved picosecond coherent anti-Stokes Raman scattering (ps-CARS). A custom-built, high-peak-power, nearly transform-limited ps laser system offers an ideal combination of frequency and temporal resolution for such measurements. The coherence lifetimes measured for pure H-2 at room temperature are in good agreement with decay rates that were derived from previous high-resolution studies. Measurements were also performed in binary mixtures of H-2-X (X=Ar, N-2, CH4, and C2H4). These measurements can be useful for accurate H-2 ps-CARS thermometry as well as for studying various H-2 collisional energy-transfer processes. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3483871]

引用

页数：3

共 13 条

[1]

[Anonymous], 101 NIST

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