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Wide band (2.5 GHz) infrared heterodyne spectrometer

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Conclusion

A double beam heterodyne spectrometer with 2.5 GHz bandwidth was built in Reims. The receiver's bandwidth was measured by heterodyning radiation from a CO2 laser with the radiation from a tunable diode laser. The spectrometer was used for laboratory studies. Ammonia absorption spectra were recorded. Line positions in agreement with other works were measured.

This apparatus will soon be used for atmospheric ozone studies in association with an isotopic12C18O2 laser to avoid atmospheric CO2 absorption.

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Authors and Affiliations

  1. Faculté des Sciences, Groupe de Spectrométrie Moléculaire et Atmosphérique GSMA Unité Associée au CNRS: URA, BP 347-51062, D 1434, Reims Cedex, France

    B. Parvitte, X. Thomas & D. Courtois

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  1. B. Parvitte
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  2. X. Thomas
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  3. D. Courtois
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Parvitte, B., Thomas, X. & Courtois, D. Wide band (2.5 GHz) infrared heterodyne spectrometer. Int J Infrared Milli Waves 16, 1533–1540 (1995). https://doi.org/10.1007/BF02274814

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  • DOI: https://doi.org/10.1007/BF02274814

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