Optoacoustic measurements of energy absorption in CO2 TEA-laser-excited SF6 at 293 and 145 K

被引：55

作者：

Deutsch, T. F. ^{[1
]}

机构：

[1] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA

来源：

OPTICS LETTERS | 1977年 / 1卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1364/OL.1.000025

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optoacoustic technique is used to measure the absorption of CO2 TEA laser energy in SF6 as a function of frequency and energy flux at 293 and 145 K. The behavior of absorbed-energy versus incident-energy flux curves shows a strong dependence on frequency-at 145 K, whereas at 293 K the dependence is less pronounced. When the CO2 pulse is lengthened sufficiently, laser-induced hot-band effects arising from vibrational relaxation during the pump pulse can be observed.

引用

页码：25 / 27

页数：3

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