Open AccessModel for polarized and depolarized Rayleigh Brillouin scattering spectra in molecular gases
Author(s) -
Qiuhua Zheng
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.014257
Subject(s) - rayleigh scattering , spectral line , brillouin scattering , brillouin zone , optics , scattering , materials science , light scattering , atomic physics , physics , molecular physics , computational physics , quantum mechanics , laser
Numerical models for Rayleigh-Brillouin scattering (RBS) spectra from molecular gases are obtained and discussed in this paper. The current publicly-available S6 model is for polarized RBS spectra only, despite the existence of both polarized and depolarized RBS light in many real applications. One of the new models (Q9) can be used to calculate both polarized and depolarized RBS spectra. In addition, this model has a solid physical ground because it is based on the correct Waldmann-Snider equation in which molecular internal energy is treated quantum-mechanically.