Pulsed laser photoacoustic detection of SO2 near 225.7 nm

被引：42

作者：

Gondal, MA ^{[1
]}

Mastromarino, J ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Res Inst, Laser Res Sect, Ctr Appl Phys Sci, Dhahran 31261, Saudi Arabia

来源：

APPLIED OPTICS | 2001年 / 40卷 / 12期

关键词：

D O I：

10.1364/AO.40.002010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A trace concentration of SO2 near 225.7 nm has been detected with a master-oscillator power-oscillator laser system for the first time, to our knowledge. A photoacoustic absorption spectrum of SO2 has been recorded on the (1)A(2)-B-1(2) (pi-pi*) transition. Parametric dependence of the photoacoustic signal has been investigated. A detection limit (signal-to-noise ratio of 1) of 1.3 parts in 10(9) [1.3 ppbv (parts per billion by volume)] for SO2 have been determined at 1 atmospheric pressure inside a photoacoustic cell. (C) 2001 Optical Society of America.

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页码：2010 / 2016

页数：7

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