LED-Based Fourier Transform Spectroscopy: the HD16O Absorption Spectrum in the Range of 11200–12400 cm−1

Abstract

The vibrational—rotational spectrum of the HD¹⁶O molecule is studied within the range of 11200⁻¹2400 cm⁻¹. The spectrum is recorded by an IFS-125M Fourier spectrometer with a resolution of 0.05 cm⁻¹. The measurements are performed using a multipass White cell. A light-emitting diode is used as a radiation source. The signal-to-noise ratio was about 10⁴. The centers, intensities, and half-widths of the spectral lines are determined by fitting to the experimental data by the least-squares method. A linelist containing more than 1500 lines is created. The results obtained are compared with the experimental data of other authors.