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Intracavity photoacoustic gas detection with an external cavity diode laser

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Abstract

The first use of an external cavity diode-laser light source in combination with a photoacoustic detector for high-sensitivity gas detection is described. This combined system is applicable for detecting gases with absorption coefficients as low as 5 x 10−8 cm−1 by operating the photoacoustic cell in an intracavity mode. Measurements were made on the 1.13 μm absorption lines of water vapour. For quantitative measurements, it was found to be necessary to introduce a reference cell into the system.

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Authors and Affiliations

  1. Research Group on Laser Physics of the Hungarian Academy of Sciences, JATE University, Dóm tér 9, H-6720, Szeged, Hungary

    Z. Bozóki, J. Sneider & G. Szabó

  2. Department of Photophysics, Institute of Isotopes of the Hungarian Academy of Sciences, P.O. Box 77, H-1525, Budapest, Hungary

    A. Miklós

  3. Research Institute for Technical Physics of the Hungarian Academy of Sciences, H-1325, Budapest, Hungary

    M. Serényi & G. Nagy

  4. Chinoin Pharmaceutical and Chemical Works Ltd., Tó u. I-5., H-1045, Budapest, Hungary

    M. Fehér

Authors
  1. Z. Bozóki
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  2. J. Sneider
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  3. G. Szabó
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  4. A. Miklós
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  5. M. Serényi
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  6. G. Nagy
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  7. M. Fehér
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Bozóki, Z., Sneider, J., Szabó, G. et al. Intracavity photoacoustic gas detection with an external cavity diode laser. Appl. Phys. B 63, 399–401 (1996). https://doi.org/10.1007/BF01828745

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  • DOI: https://doi.org/10.1007/BF01828745

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