The absorption spectrum of D2O in the region of 0.97 μm: the 3ν1 + ν3 vibrational–rotational band


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The vibrational–rotational absorption spectrum of D2O in the range from 10 120 to 10 450 cm–1 is recorded on a Fourier transform spectrometer with a resolution of 0.05 cm–1. The measurements were performed using a multipass White cell with an optical path length of 24 m. A light-emitting diode with brightness higher than that of other devices was used as a radiation source. The signal-to-noise ratio was about 104. The spectrum is interpreted as consisting of lines of more than 400 transitions. The spectral characteristics of lines (centers, intensities, and half widths) are determined by fitting the Voigt profile parameters to experimental data by the least-squares method. The intensities of lines and the experimental rotational energy levels of the (301) vibrational state of the D216O molecule with high rotational quantum numbers are determined for the first time.

About the authors

V. I. Serdyukov

Zuev Institute of Atmospheric Optics, Siberian Branch

Email: sln@iao.ru
Russian Federation, Tomsk, 634021

L. N. Sinitsa

Zuev Institute of Atmospheric Optics, Siberian Branch

Author for correspondence.
Email: sln@iao.ru
Russian Federation, Tomsk, 634021

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2017 Pleiades Publishing, Ltd.