LED Fourier spectroscopy of H216O in the 14800-15500 cm-1 spectral region
I.A. Vasilenko, L.N. Sinitsa, V.I. Serdyukov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: water vapor, LED-based Fourier transform spectroscopy, energy levels, vibrational-ratational transitions
Abstract
Fourier absorption spectrum of water vapor is studied in the spectral region 14800-15500-1 with a resolution of 0.05 cm-1 and an optical path length of 3480 cm. A detailed list is obtained consisting of 906 identified absorption lines of H216O, as well as a set of 426 energy levels belonging to 19 vibrational states. Fifty-five energy levels are determined for the first time, and the energies of 64 levels are corrected. A comparison is made with the data available in the literature. The error in the positions of well-resolved not very weak lines is 0.002 cm-1, and the error in intensities is 10-15%.
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