An experimental study of the angle and temperature dependences of the spontaneous Brillouin shift in ethanol

Kilicaslan I., Esen C.

JOURNAL OF MODERN OPTICS, vol.52, no.8, pp.1189-1196, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 8
  • Publication Date: 2005
  • Doi Number: 10.1080/09500340512331327552
  • Journal Name: JOURNAL OF MODERN OPTICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1189-1196
  • Kocaeli University Affiliated: No

Abstract

Brillouin light spectra of ethanol in a temperature range from 10 to 45 degrees C were experimentally investigated by a scanning Fabry - Perot interferometer. The measurement of spectra were performed at a detection angle of 90 degrees, which is indicated by decreased elastically scattered light. The effect of detection angle in the range 70 to 110 degrees was also observed. A strong dependence of the Brillouin shift on temperature and detection angle was found. The results are summarized in graphical form.