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Photoacoustic trace-gas detection using a cw single-frequency parametric oscillator

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H6) at 3.34 μm using a widely tunable cw single-frequency optical parametric oscillator. The high frequency and power stability and the continuous tunability of the parametric oscillator make it ideally suited for this application. Detection sensitivities of 0.5 ppb for ethane are obtained, which is comparable to the best results previously obtained with intracavity detection using line-tunable CO overtone lasers. The flexibility and compact size of cw single-frequency parametric oscillators can lead to portable photoacoustic trace-gas detection systems for environmental monitoring and process control.

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Authors and Affiliations

  1. Institut für Angewandte Physik der Universität Bonn, Wegelerstrasse 8, D-53115 Bonn, Germany, , , , , , DE

    F. Kühnemann, A. Hecker, A.A.E. Martis & W. Urban

  2. Universität Konstanz, Fakultät für Physik, Postfach 5560-M696, D-78457 Konstanz, Germany, , , , , , DE

    K. Schneider, S. Schiller & J. Mlynek

Authors
  1. F. Kühnemann
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  2. K. Schneider
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  3. A. Hecker
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  4. A.A.E. Martis
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  5. W. Urban
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  6. S. Schiller
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  7. J. Mlynek
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Received: 28 January 1998/Revised version: 9 April 1998

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Kühnemann, F., Schneider, K., Hecker, A. et al. Photoacoustic trace-gas detection using a cw single-frequency parametric oscillator . Appl Phys B 66, 741–745 (1998). https://doi.org/10.1007/s003400050461

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  • DOI: https://doi.org/10.1007/s003400050461

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