Results 261 to 270 of about 1,816,894 (319)

Stimulated Brillouin Scattering

Applied Optics, 1969
Stimulated Brillotuin scattering, the efficient scattering of light from parametrically amplified therma acoustic waves, has found many valuable uses since its initial observation and identification. Among these uses are included the measurement of hypersonic velocities and absorption in the gigaherz frequency range, laser frequency shifting, laser Q ...
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Brillouin Scattering in Sodium Nitrite

Journal of the Physical Society of Japan, 1974
The Brillouin scattering spectra in NaNO 2 have been studied using a Fabry-Perot interferometer. The observed Brillouin shifts for eighteen acoustic phonons in nine scattering geometries have been assigned to specific modes of vibration. The determined values of nine elastic constants in units of 10 10 dyn/cm 2 are C 11 =31.7, C 22 =58.2, C 33 =66.0, C
H. Shimizu, Y. Ishibashi, M. Tsukamoto, M. Umeno   +3 more
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Advances in applications of time-domain Brillouin scattering for nanoscale imaging

Applied Physics Reviews, 2018
Time-domain Brillouin scattering is an all-optical experimental technique based on ultrafast lasers applied for generation and detection of coherent acoustic pulses on time durations of picoseconds and length scales of nanometers.
V. Gusev, P. Ruello
semanticscholar   +1 more source

Coherent Rayleigh-Brillouin Scattering

Physical Review Letters, 2002
Coherent Rayleigh-Brillouin scattering in gases has been studied experimentally for the first time in the kinetic regime and shown to give line shapes that differ significantly from the spontaneous Rayleigh-Brillouin scattering. A kinetic model was developed to obtain an analytic solution of the line shape for monatomic gases, and good agreement with ...
Xingguo, Pan, Mikhail N, Shneider, Richard B, Miles   +2 more
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Spontaneous Brillouin scattering in a microdroplet

Physical Review A, 1990
Spontaneous Brillouin scattering in a micrometer-sized liquid droplet is analyzed from first principles, using the spherical-wave normal-mode basis. Instead of the conservation of linear momentum, this interaction is governed by a selection rule due to the conservation of angular momentum. The Brillouin spectrum is then calculated, both for observation
, Ching, , Leung, , Young
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Stimulated Brillouin scattering

Nonlinear Fiber Optics, 2019
Stimulated Brillouin scattering (SBS) is a non-linear process that can occur in optical fibers at input power levels much lower than those needed for stimulated Raman scat- tering (SRS).
G. Agrawal
semanticscholar   +1 more source

Waveguided Raman and Brillouin scattering

SPIE Proceedings, 2000
Raman and Brillouin spectroscopy in planar waveguides can be performed by coupling the laser beam to the waveguide with a prism and by collecting the scattered light from the front surface. Brillouin spectra, which are different for excitation in the different modes of the waveguides, can be accounted for by a model that considers the space ...
Montagna, Maurizio, S. Ronchin, F. Rossi, Tosello, Cristiana, E. Moser, M. Ferrari, G. Righini   +6 more
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Resonant Brillouin scattering in ZnSe

Physical Review B, 1977
Resonant Brillouin scattering in ZnTe has been investigated at room temperature by using injected acoustic domains.
Sadao Adachi, Chihiro Hamaguchi
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Multikilohertz stimulated Brillouin scattering

Optics Letters, 1994
We report, for the first time to our knowledge, multikilohertz stimulated-Brillouin-scattering phase conjugation of copper-vapor laser radiation. The small wavelength shift associated with the Stokes radiation is shown to permit double-pass aberration correction of the copper-vapor laser, avoiding the postlasing absorption.
M A, O'Key, M R, Osborne
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Brillouin scattering in semiconductors

1975
Brillouin scattering is known to be a valuable probe of acoustic phonons in gases, liquids and solids. The effects peculiar to Brillouin scattering in semiconductors will be the subject of this chapter. The velocity of sound is determined directly from the Brillouin shift; so, generally, elastic constants and velocity anisotropy, relaxation processes ...
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