Results 31 to 40 of about 16,209 (199)

Phase-locking in cascaded stimulated Brillouin scattering

open access: yesNew Journal of Physics, 2016
Cascaded stimulated Brillouin scattering is a complex nonlinear optical process that results in the generation of several optical waves that are frequency shifted by an acoustic resonance frequency.
Thomas F S Büttner   +4 more
doaj   +1 more source

Stimulated scattering of electromagnetic waves carrying orbital angular momentum in quantum plasmas [PDF]

open access: yes, 2012
We investigate stimulated scattering instabilities of coherent circularly polarized electromagnetic (CPEM) waves carrying orbital angular momentum (OAM) in dense quantum plasmas with degenerate electrons and nondegenerate ions.
Eliasson, Bengt   +2 more
core   +2 more sources

High-speed stimulated Brillouin scattering spectroscopy at 780 nm

open access: yesAPL Photonics, 2016
We demonstrate a high-speed stimulated Brillouin scattering (SBS) spectroscopy system that is able to acquire stimulated Brillouin gain point-spectra in water samples and Intralipid tissue phantoms over 2 GHz within 10 ms and 100 ms, respectively ...
Itay Remer, Alberto Bilenca
doaj   +1 more source

Spontaneous Brillouin Scattering Spectrum and Coherent Brillouin Gain in Optical Fibers

open access: yesApplied Sciences, 2018
Brillouin light scattering describes the diffraction of light waves by acoustic phonons, originating from random thermal fluctuations inside a transparent body, or by coherent acoustic waves, generated by a transducer or from the interference of two ...
Vincent Laude, Jean-Charles Beugnot
doaj   +1 more source

Controlled beat-wave Brillouin scattering in the ionosphere

open access: yesNature Communications, 2021
Nonlinear wave mixing has been explored in space plasma. Here the authors report beat-wave Brillouin scattering experiment at EISCAT, in which two radio waves at different transmitted frequencies are driving ion acoustic waves in the ionosphere, leading ...
B. Eliasson   +11 more
doaj   +1 more source

Anti-Stokes scattering and Stokes scattering of stimulated Brillouin scattering cascade in high-intensity laser-plasmas interaction

open access: yes, 2017
The anti-Stokes scattering and Stokes scattering in stimulated Brillouin scattering (SBS) cascade have been researched by the Vlasov-Maxwell simulation.
Cao, L. H.   +7 more
core   +2 more sources

On-chip stimulated Brillouin scattering

open access: yesOptics Express, 2011
We demonstrate on-chip stimulated Brillouin scattering (SBS) in an As2S3 chalcogenide rib waveguide. SBS was characterized in a cm long waveguide with a cross-section 4 μm x 850 nm using the backscattered signal and pump-probe technique. The measured Brillouin shift and its full-width at half-maximum (FWHM) linewidth were ~7.7 GHz and 34 MHz ...
Pant, Ravi   +9 more
openaire   +3 more sources

Mathematical model of optical amplifier using nonlinear stimulated Brillouin scattering (SBS) in optical fiber

open access: yesمجلة بغداد للعلوم, 2007
We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier.
Baghdad Science Journal
doaj   +1 more source

High-Accuracy Spectral Measurement of Stimulated-Brillouin-Scattering Lidar Based on Hessian Matrix and Steger Algorithm

open access: yesRemote Sensing, 2023
The measurement accuracy of Brillouin scattering spectra is crucial for ocean remote sensing by Brillouin scattering lidar. Due to the limited resolution of ICCD cameras, the traditional processing methods remain at the pixel or partial sub-pixel level ...
Zhiqiang Liu   +7 more
doaj   +1 more source

Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters

open access: yesJournal of the European Optical Society-Rapid Publications, 2017
Background Liquid filled hollow core fiber Raman wavelength converters are devices enabling to red-shift the wavelength of laser beams delivered by either fixed wavelength or tunable lasers. Most of the reported converters operate in a pulsed regime with
Min Châu Phan Huy   +7 more
doaj   +1 more source

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