Leading spectral moments for easy computation of pressure effects on rotational lines

Andrei Sokolov, Alexander Kouzov, Jeanna Buldyreva

Research output

1 Citation (Scopus)

Abstract

Explicit classical-limit formulae for two leading spectral moments characterizing the anisotropy of the interaction potential are derived for fast collisions of linear rotators in the binary regime. With the help of these moments, model Fourier-transforms of the time-correlation functions comprising non-Markovian effects are restored, which enables a novel and straight approach to pressure transformation of broad spectral bands and pressure-broadening characteristics of (vib)rotational spectral lines, as demonstrated on a simple Markov-limit example of isotropic and anisotropic Raman line widths of molecular nitrogen.

Original languageEnglish
Pages (from-to)1390-1394
Number of pages5
JournalJournal of Raman Spectroscopy
Volume51
Issue number8
Early online date8 Jul 2020
DOIs
Publication statusPublished - 1 Aug 2020

Scopus subject areas

  • Materials Science(all)
  • Spectroscopy

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