THE THRESHOLD OF RESONANCE STRICTION PARA METRIC-EXCITATION IN DROPLETS BY OPTICAL-PUMPING

Citation
Gv. Belokopytov et Np. Pushechkin, THE THRESHOLD OF RESONANCE STRICTION PARA METRIC-EXCITATION IN DROPLETS BY OPTICAL-PUMPING, Izvestia vyssih ucebnyh zavedenij. Radiofizika, 35(6-7), 1992, pp. 498-510
Citations number
20
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
ISSN journal
00213462
Volume
35
Issue
6-7
Year of publication
1992
Pages
498 - 510
Database
ISI
SICI code
0021-3462(1992)35:6-7<498:TTORSP>2.0.ZU;2-4
Abstract
Parametric striction excitation of acoustic oscillations in droplets u nder intense light wave pump is considered. Threshold intensities of M andelshtam - Brillouin scattering were calculated with account of fiel ds inhomogeneity and resonance character of interaction. Conditions ar e found where threshold intensity is low and of the order of 10(3) W/m 2 for water drops of radii more then 4 mum at 0.4-0.7 mum light wavele ngths. The observation of the excitation is possible in spite of nonli near detaining effects of thermal origin.