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Simultaneous Detection of Major Greenhouse Gases with Multiresonator Photoacoustic Spectroscopy.
Analytical ChemistryGreenhouse gas (GHG) detection plays an important role in climate change research and industry applications. A novel photoacoustic spectroscopy (PAS) sensor based on multiple resonators has been developed for the detection of GHGs.
Jie Peng +7 more
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Optimization of a Microphone for Photoacoustic Spectroscopy
Applied Spectroscopy, 2003The principles of optimizing a microphone for a photoacoustic detector in the nonresonant mode of operation are presented. Performance of the constructed optical cantilever microphone is compared to the commercial electret microphone by measuring the photoacoustic spectrum of methane with both systems.
Jyrki Kauppinen, Klaus M. Wilcken
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Dermatological photoacoustic spectroscopy
1981Photoacoustic spectroscopy, a new and developing technique, has generated considerable interest as a spectroscopic tool for the studying of solid, semisolid and biological samples. This technique allows the depth profiles of both the optical and thermal properties of skin to be determined in cases where other techniques can be applied only with ...
E. Pines, T. Cunningham
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Photoacoustic Spectroscopy of Biological Materials
Science, 1973A new technique for performing optical spectroscopy on solids has been developed. Photoacoustic spectra of cytochrome c and hemoglobin show how this technique can be used to obtain information about optical absorptions and subsequent de-excitations in solid biological materials, particularly those which cannot readily be studied by conventional means.
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Lasers, Sources and Related Photonic Devices, 2010
Performance of quartz-enhanced photoacoustic spectroscopy and conventional photoacoustic spectroscopy based detectors applied to trace gas sensing was compared. Nitrogen with 10 ppmv of acetylene and a diode laser accessing 6529.17 cm−1 absorption line were used.
Lei Dong +3 more
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Performance of quartz-enhanced photoacoustic spectroscopy and conventional photoacoustic spectroscopy based detectors applied to trace gas sensing was compared. Nitrogen with 10 ppmv of acetylene and a diode laser accessing 6529.17 cm−1 absorption line were used.
Lei Dong +3 more
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Photoacoustic and photothermal spectroscopy
International Congress on Applications of Lasers & Electro-Optics, 1985Spectroscopic measurements utilizing photoacoustic (PA) or other photothermal (PT) detections have continued to gain importance in the last ten years. The reasons include the following. First, PA or PT measurements can be performed on “difficult” samples like highly opaque or high transparent materials where conventional transmission measurements ...
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Photoacoustic spectroscopy of actinide oxides
Journal of the Less Common Metals, 1986Abstract Photoacoustic spectroscopy has been used to measure directly the absorption spectra of powdered actinide oxides (thorium, uranium, neptunium, plutonium, americium and curium). The photoacoustic spectra in the UV, visible and near-IR region were measured with a single beam instrument supplemented by a small glove box which contained the ...
Heinrich, G., Guesten, H., Ache, H. J.
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Photoacoustic X-Ray Absorption Spectroscopy [PDF]
, 1988 When materials are irradiated by X-rays, several effects occur, e. g. absorption, scattering, fluorescence, and electron release, as seen in Fig. 1. Heat generation should also be observed on absorption of electromagnetic waves even for the X-ray absorption process.
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Simultaneous detection of multiple gases using multi-resonance photoacoustic spectroscopy
Sensors and Actuators B: Chemical, 2022Qi Huang, Yuan Wei, Jingsong Li
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