Full analytical evaluation of the line shift and line width of ions in solids for Raman processes

ESER E., Koc H.

LUMINESCENCE, vol.33, no.2, pp.433-437, 2018 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 2
  • Publication Date: 2018
  • Doi Number: 10.1002/bio.3431
  • Journal Name: LUMINESCENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.433-437
  • Keywords: Debye functions, the line shift, the line width, CRYSTALS, RELAXATION, LINEWIDTH, STATES
  • Ankara Haci Bayram Veli University Affiliated: Yes

Abstract

In this paper, we present a new analytical method to evaluate the temperature dependence of the thermal line shift and thermal line width of spectral lines in the Raman process using a simple approximation for the Debye functions. The proposed formulae guarantee the accurate and fast calculation of the thermal line shift and thermal line width. As an example of application, the analytical expression obtained is used to calculate the line shift and line width of the (2)E(4)A(2) transitions in V2+:MgO at temperatures from 0K up to 500K. This analytical evaluation shows that our results are satisfactory for the wide range temperature variations.