Abstract
A laser heterodyne spectrometer for the 10 μm region has been built. A 5 MHz apparatus function is obtained. The improvement of this spectrometer using a dual-beam technique is described. The folding effects in heterodyne spectroscopy are discussed. The recorded lineshapes are explained. An ethylene spectrum is shown as an example.
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Thiébeau, C., Courtois, D., Delahaigue, A. et al. Dual-beam laser heterodyne spectrometer: Ethylene absorption spectrum in the 10 μm range. Appl. Phys. B 47, 313–318 (1988). https://doi.org/10.1007/BF00716092
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DOI: https://doi.org/10.1007/BF00716092