Pulsed laser photoacoustic detection of SO2 near 225.7 nm

Mohammed A. Gondal; Joseph Mastromarino

doi:10.1364/AO.40.002010

Pulsed laser photoacoustic detection of SO₂ near 225.7 nm

Mohammed A. Gondal, Joseph Mastromarino

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

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 ¹A₂–¹B₂ (π–π*) transition. Parametric dependence of the photoacoustic signal has been investigated. A detection limit (signal-to-noise ratio of 1) of 1.3 parts in 10⁹ [1.3 ppbv (parts per billion by volume)] for SO₂ have been determined at 1 atmospheric pressure inside a photoacoustic cell.

Original language	English
Pages (from-to)	2010-2016
Number of pages	7
Journal	Applied Optics
Volume	40
Issue number	12
DOIs	https://doi.org/10.1364/AO.40.002010
State	Published - 20 Apr 2001

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

Access to Document

10.1364/AO.40.002010

Cite this

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abstract = "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 1A2–1B2 (π–π*) transition. Parametric dependence of the photoacoustic signal has been investigated. A detection limit (signal-to-noise ratio of 1) of 1.3 parts in 109 [1.3 ppbv (parts per billion by volume)] for SO2 have been determined at 1 atmospheric pressure inside a photoacoustic cell.",

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AB - 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 1A2–1B2 (π–π*) transition. Parametric dependence of the photoacoustic signal has been investigated. A detection limit (signal-to-noise ratio of 1) of 1.3 parts in 109 [1.3 ppbv (parts per billion by volume)] for SO2 have been determined at 1 atmospheric pressure inside a photoacoustic cell.

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