Photoacoustic Measurement of Carbon Monoxide Using a Semiconductor Diode Laser

Vansteenkiste, T. H.; Faxvog, F. R.; Roessler, David M.

doi:10.1366/0003702814731653

Cited by 24 publications

(23 citation statements)

References 5 publications

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“…This is not a restriction with diode lasers, which can be easily tuned. Technological development in the near infra− red has been of great importance in enabling application of photoacoustic detection with semiconductor laser sources having sufficient power to excite a photoacoustic signal [54,55]. Vansteenkiste et al [54] carried out the first appli− cations of diode lasers in the infrared region in combination with photoacoustic detection in 1981.…”

Section: Infrared Laser Diode Photoacoustic Detectionmentioning

confidence: 99%

Infrared diode laser spectroscopy

Civiš

Cihelka²,

Matulková

2010

Opto-Electronics Review

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Three types of lasers (double-heterostructure 66 K InAsSb/InAsSbP laser diode, room temperature, multi quantum wells with distributed feedback (MQW with DFB) (GaInAsSb/AlGaAsSb based) diode laser and vertical cavity surface emitting lasers (VCSELs) (GaSb based) have been characterized using Fourier transform emission spectroscopy and compared. The photoacoustic technique was employed to determine the detection limit of formaldehyde (less than 1 ppmV) for the strongest absorption line of the v3 + v5 band in the emission region of the GaInAsSb/AlGaAsSb diode laser. The detection limit (less than 10 ppbV) of formaldehyde was achieved in the 2820 cm−1 spectral range in case of InAsSb/InAsSbP laser (fundamental bands of v1, v5). Laser sensitive detection (laser absorption together with high resolution Fourier transform infrared technique including direct laser linewidth measurement, infrared photoacoustic detection of neutral molecules (methane, form-aldehyde) is discussed.Additionally, very sensitive laser absorption techniques of such velocity modulation are discussed for case of laser application in laboratory research of molecular ions. Such sensitive techniques (originally developed for lasers) contributed very much in identifying laboratory microwave spectra of a series of anions (C6H−, C4H−, C2H−, CN−) and their discovery in the interstellar space (C6H−, C4H−).

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Section: Infrared Laser Diode Photoacoustic Detectionmentioning

confidence: 99%

Infrared diode laser spectroscopy

Civiš

Cihelka²,

Matulková

2010

Opto-Electronics Review

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“…Other laser sources employed to detect photoacoustically atmospheric trace gases are He-Ne 2,3 and diode lasers. 4 In comparison the CO 2 laser possesses broad tunability and high laser power permitting measurements of mixtures of several gases at ͑sub͒-part per billion volume concentrations ͑1 part per billion ϭ 1:10 9 ͒. 5 The conditions for high laser power and broad line tunability are also met by a CO laser.…”

Section: Introductionmentioning

confidence: 99%

“…6 -8 We focus on the performance and characteristics of the liquid-nitrogen-cooled CO laser and an intracavity PA cell. We optimized the PA cell to detect fast changes of low production sources of CH 4 and H 2 O. The experimental setup is applied to monitor trace gas release from single insects.…”

Section: Introductionmentioning

confidence: 99%

“…Atmospheric CH 4 contributes significantly to the process of global warming and ozone depletion. Biogenic sources are responsible for the major part of the mondial CH 4 flux ͑Ͼ70%͒; the contribution of each different source is still a question for debate.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to CH 4 and CO 2 emissions of insects, water vapor release has been the subject of many studies. Information about water loss dynamics in insects is based on theoretical modeling, sensitive weighing, and relatively slow direct water vapor measurements.…”

Section: Introductionmentioning

confidence: 99%

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Intracavity CO laser photoacoustic trace gas detection: cyclic CH_4, H_2O and CO_2 emission by cockroaches and scarab beetles

et al. 1996

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A liquid-nitrogen-cooled CO laser and an intracavity resonant photoacoustic cell are employed to monitor trace gases. The setup was designed to monitor trace gas emissions of biological samples on line. The arrangement offers the possibility to measure gases at the 10 9 by volume ͑ppbv͒ level ͑e.g., CH 4 , H 2 O͒ and to detect rapid changes in trace gas emission. A detection limit of 1 ppbv for CH 4 in N 2 equivalent to a minimal detectable absorption of 3 ϫ 10 Ϫ9 cm Ϫ1 can be achieved. Because of the kinetic cooling effect we lowered the detection limit for CH 4 in air is decreased to 10 ppbv. We used the instrument in a first application to measure the CH 4 and H 2 O emission of individual cockroaches and scarab beetles. These emissions could be correlated with CO 2 emissions that were recorded simultaneously with an infrared gas analyzer. Characteristic breathing patterns of the insects could be observed; unexpectedly methane was also found to be released.

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Photoacoustic Spectroscopy in Trace Gas Monitoring

Harren

Mandon

Cristescu

2000

Encyclopedia of Analytical Chemistry

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Since ancient times people have searched for ways to understand processes occurring in the environment, atmosphere or living organisms. Study of the gaseous trace compounds present may shed new light on chemical reactions taking place in the atmosphere or biochemical reactions inside organisms such as plants, animals and human beings. This article presents photoacoustic spectroscopy as a sensitive, on‐line and noninvasive tool for monitoring the concentration of trace gases. Following a short introduction and a historic overview, attention is focused on the description of devices and equipment which determine the detection limits and selectivity. An overview is given of the current detection limits for photoacoustic detection. Applications are discussed with emphasis on environmental monitoring (in ambient air, car exhaust and stack gas emission), on medical applications and on biological applications (in postharvest physiology, plant physiology, microbiology and entomology).

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Photoacoustic Measurement of Carbon Monoxide Using a Semiconductor Diode Laser

Cited by 24 publications

References 5 publications

Infrared diode laser spectroscopy

Infrared diode laser spectroscopy

Intracavity CO laser photoacoustic trace gas detection: cyclic CH_4, H_2O and CO_2 emission by cockroaches and scarab beetles

Photoacoustic Spectroscopy in Trace Gas Monitoring

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