Stimulated Brillouin scattering in solid aerosols
We estimate the differential scattering cross-section due to SBS in a glass bead which is much larger than the wavelength of a high energy laser beam which irradiates it. We consider three possible scenarios: neither the incident nor the Stokes wavelength is on a Mie resonance; only the Stokes wavelength is on resonance; and the incident wavelength and the Stokes wavelength are on a Mie resonance. For the first two cases, we find that the SBS scattering cross-section is extremely small compared to the geometric/Mie cross-section. It follows as a corollary that SBS in a glass bead will be insufficient to shatter it in these two cases. In the last case, it is quite possible that due to the buildup of high fields on-resonance within the spherical bead, the bead might be shattered. The chance of such an event occurring in a polydisperse distribution of spherical beads is generally not expected to be very high. 3 figs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7031284
- Report Number(s):
- LA-UR-88-2876; CONF-8806239-1; ON: DE89000390
- Resource Relation:
- Conference: CRDEC scientific conference on obscuration and aerosol research, Aberdeen, MD, USA, 22 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
LASER RADIATION
SCATTERING
AEROSOLS
BRILLOUIN EFFECT
CROSS SECTIONS
EQUATIONS OF MOTION
FOCUSING
GLASS
GREEN FUNCTION
HYDRODYNAMIC MODEL
SCATTERING AMPLITUDES
AMPLITUDES
COHERENT SCATTERING
COLLOIDS
DIFFERENTIAL EQUATIONS
DISPERSIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
FUNCTIONS
MATHEMATICAL MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE MODELS
RADIATIONS
SOLS
STATISTICAL MODELS
THERMODYNAMIC MODEL
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)