Modification of the Experimental Setup of the FTIR Spectrometer and Thirty-meter Optical Cell for Measurements of Weak Selective and Nonselective Absorptions

A. M. Solodov^a, A. A. Solodov^a^, *, V. M. Deichuli^a^, ^b, A. N. Kuryak^a, K. Yu. Osipov^a, T. M. Petrova^a^, **, Yu. N. Ponomarev^a, and I. V. Ptashnik^a^, ***
Translated by S. Ponomareva

^aV.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055 Russia

^bNational Research Tomsk State University, Tomsk, 634050 Russia

Correspondence to: *e-mail: asolodov@iao.ru
Correspondence to: **e-mail: tanja@iao.ru;
Correspondence to: ***e-mail: piv@iao.ru

Received 22 March, 2017

Abstract—The improvement of the experimental setup based on a Fourier spectrometer Bruker IFS-125 and a 30-meter multipass optical cell is described. The improvement includes the cell equipment with a system of automated adjustment of the number of beam passes without cell depressurization and ensures the cell work at high temperatures.

Keywords: Fourier spectrometer, multipass cell, absorption spectrum

DOI: 10.1134/S1024856017050116