Brillouin Scattering in Liquids at 4416 Å and 4765 Å

Autor: Gustafsson, Silas E., Knape, H. E. Gunilla, Torell, Lena M.
Zdroj: Zeitschrift für Naturforschung A; July 1973, Vol. 28 Issue: 7 p1152-1155, 4p
Abstrakt: An argon ion laser operating at 4765 Å and a helium-cadmium laser operating at 4416 Å have been used as radiation sources to study Brillouin scattering in seven organic liquids. The Brillouin spectra were investigated at 90° with a pressure scanned Fabry-Perot spectrometer. The measured frequency shifts between the Stokes and anti-Stokes lines were used to determine the hypersonic velocities of thermal waves at frequencies between 4.8 and 7.2 GHz. No dispersion of the hypersound could be detected.
Databáze: Supplemental Index