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 |
Externí odkaz: |
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