Paper
25 November 2014 H216O absorption spectrum between 22250 and 22800 cm-1: Fourier transform spectroscopy with bright light source
V. I. Serduykov, L. N. Sinitsa, S. S. Vasil’chenko, A. D. Bykov, T. V. Kruglova, E. R. Polovtseva, A. P. Scherbakov
Author Affiliations +
Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 92920K (2014) https://doi.org/10.1117/12.2075383
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation
Abstract
Measurements of water vapor absorption spectra in the visible spectral region near 0.44 mkm are performed using FTspectrometer IFS-125M and Light-emitting diode (LED) as source of radiation. Water vapor spectrum has been obtained by averaging over 17136 scans recorded at 34,8 m optical path length, temperature 24 ± 1 С and pressure of sample 24,8 mBar. Due to strong emission of LED source it was possible to achieve signal-to-noise ratio about 104 and to record weak lines with intensities of 6 10-27 cm/molecule. Comparisons with results of early works are made.
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V. I. Serduykov, L. N. Sinitsa, S. S. Vasil’chenko, A. D. Bykov, T. V. Kruglova, E. R. Polovtseva, and A. P. Scherbakov "H216O absorption spectrum between 22250 and 22800 cm-1: Fourier transform spectroscopy with bright light source", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92920K (25 November 2014); https://doi.org/10.1117/12.2075383
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KEYWORDS
Absorption

Light emitting diodes

Spectroscopy

Visible radiation

Atmospheric physics

Fourier transforms

Light sources

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