2005
DOI: 10.1039/b503838c
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Laser diode photoacoustic detection in the infrared and near infrared spectral ranges

Abstract: A new technique for high resolution photoacoustic detection based on application of laser diodes has been developed. This method was tested and compared using identical photoacoustic instrumentation (cell and microphone) to study gas absorption in three different spectral regions, namely: the infrared range near 2100 cm(-1), CO and OCS fundamental band absorption; the ranges near 4200 and 4350 cm(-1), CH4, NH3 and N2O overtone and combination band absorption; the near infrared range near 6500 cm(-1), CO, CO2 a… Show more

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Cited by 23 publications
(10 citation statements)
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“…This article summarises our previous investigations of the properties of the tunable laser diodes based on InAsSb/ InAsSbP [26][27][28][29][30][31][32][33][34][35] together with new type of the VCSE lasers working in the same spectral range [36]. The main purpose of this study is to present the simple physical methods that would permit to determine the widths of the spectral line of the lasers in dependence on the temperature and injection current and to discuss the factors influencing laser spectral linewidth.…”
Section: Introductionmentioning
confidence: 99%
“…This article summarises our previous investigations of the properties of the tunable laser diodes based on InAsSb/ InAsSbP [26][27][28][29][30][31][32][33][34][35] together with new type of the VCSE lasers working in the same spectral range [36]. The main purpose of this study is to present the simple physical methods that would permit to determine the widths of the spectral line of the lasers in dependence on the temperature and injection current and to discuss the factors influencing laser spectral linewidth.…”
Section: Introductionmentioning
confidence: 99%
“…The PA method was applied recently in our studies [5,6,9,10]. Therefore, we will describe this method very briefly.…”
Section: Introductionmentioning
confidence: 98%
“…The photoacoustic method was applied recently in our studies [5][6][7][8][9][10][11]. The investigation of gas detection techniques and the development of rugged and inexpensive gas sensors to monitor urban environments, industrial emissions or in applications for the control of industrial processes are of considerable interest.…”
Section: Introductionmentioning
confidence: 99%