Broad-linewidth laser absorption measurements of oxygen between 211 and 235 nm at high temperatures

被引：10

作者：

Hong, Zekai ^{[1
]}

Lam, King-Yiu ^{[1
]}

Davidson, David F. ^{[1
]}

Hanson, Ronald K. ^{[1
]}

机构：

[1] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2011年 / 112卷 / 17期

基金：

美国国家科学基金会;

关键词：

UV spectrum; High-temperature; Oxygen; Herzberg continuum; Schumann-Runge transition; CROSS-SECTION MEASUREMENTS; BAND OSCILLATOR-STRENGTHS; SCHUMANN-RUNGE SYSTEM; HERZBERG CONTINUUM; MOLECULAR-OXYGEN; PRESSURE-DEPENDENCE; RATE-CONSTANT; SELF-REACTION; REGION; HO2;

D O I：

10.1016/j.jqsrt.2011.08.003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Absorption coefficient data are presented for molecular oxygen at temperatures between 1100 and 2000 K and discrete wavelengths between 211 and 235 nm. Measurements were made behind reflected shock waves using broad-linewidth ultraviolet laser radiation generated from a frequency-quadrupled, tunable, pulsed Ti:Sapphire laser. Test mixtures consisting of 15% 02, 15% He and balance Ar were used to minimize the influence of vibrational relaxation on the reflected shock temperature. The experimental results are in good agreement with theoretical calculations and confirm that discrete features from the Schumann-Runge system dominate between 211 and 235 nm at temperatures higher than 1100 K. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2698 / 2703

页数：6

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