Results 1 to 10 of about 79,181 (180)

Rayleigh–Brillouin scattering of carbon dioxide [PDF]

Optics Letters, 2014
The spectral lineshape of spontaneous Rayleigh-Brillouin scattering in CO2 is studied in a range of pressures. The spectrum is influenced by the bulk viscosity, which is a relaxation phenomenon involving the internal degrees of freedom of the molecule. The associated relaxation rates can be compared to the frequency shift of the scattered light, which ...
Gu, Z., Ubachs, W.M.G., van der Water, W.   +2 more
openaire   +5 more sources

Lagrangian description of Brillouin scattering and electrostriction in nanoscale optical waveguides

New Journal of Physics, 2015
The diffraction of light by sound waves is known as Brillouin scattering. In optical waveguides, Brillouin scattering can arise from both bulk contributions, modelled by photoelasticity, and surface contributions, which are due to the waveguide ...
Vincent Laude, Jean-Charles Beugnot
doaj   +1 more source

Giant Enhancement of Stimulated Brillouin Scattering in the Subwavelength Limit [PDF]

, 2011
Stimulated Brillouin scattering (SBS) is traditionally viewed as a process whose strength is dictated by intrinsic material nonlinearities with little dependence on waveguide geometry.
Camacho, Ryan, Davids, Paul, Rakich, Peter T., Reinke, Charles, Wang, Zheng   +4 more
core   +2 more sources

Valley Hall effect in disordered monolayer MoS2 from first principles [PDF]

, 2015
Electrons in certain two-dimensional crystals possess a pseudospin degree of freedom associated with the existence of two inequivalent valleys in the Brillouin zone.
Olsen, Thomas, Souza, Ivo
core   +2 more sources

Brillouin and Kerr nonlinearities of a low-index silicon oxynitride platform

APL Photonics, 2023
Nonlinear optical effects including stimulated Brillouin scattering (SBS) and four-wave mixing (FWM) play an important role in microwave photonics, optical frequency combs, and quantum photonics.
Kaixuan Ye, Yvan Klaver, Oscar A. Jimenez Gordillo, Roel Botter, Okky Daulay, Francesco Morichetti, Andrea Melloni, David Marpaung   +7 more
doaj   +1 more source

Phase sensitive Brillouin scattering measurements with a novel magneto-optic modulator

, 2009
A recently reported phase sensitive Brillouin light scattering technique is improved by use of a magnetic modulator. This modulator is based on Brillouin light scattering in a thin ferrite film.
Fohr, F., Hamrle, J., Hillebrands, B., Schneider, T., Serga, A. A.   +4 more
core   +1 more source

Observation of Spontaneous Brillouin Cooling

, 2011
While radiation-pressure cooling is well known, the Brillouin scattering of light from sound is considered an acousto-optical amplification-only process.
A Naik, A Schliesser, AA Savchenkov, B Jalali, C Metzger, C Metzger, D Kleckner, Florian Marquardt, G Bahl, Gaurav Bahl, IS Grudinin, IS Grudinin, J Chan, J Knight, J Mertz, J Thompson, JD Teufel, L Ding, M Eichenfield, M Gorodetsky, M Li, M Tomes, M Tomes, Matthew Tomes, ML Povinelli, MS Kang, N Vermeulen, O Arcizet, P Dainese, R Riviere, R Shelby, RW Boyd, RY Chiao, S Gigan, T Carmon, T Carmon, T Carmon, Tal Carmon, TJ Kippenberg   +38 more
core   +1 more source

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

, 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., Feng, Q. S., He, X. T., Liu, Z. J., Wang, Q., Xiao, C. Z., Zhang, H. C., Zheng, C. Y.   +7 more
core   +2 more sources

Research on the System of Pulse Synthesis Pre-pump Rayleigh BOTDA technology

MATEC Web of Conferences, 2015
The conventional Rayleigh scattering Brillouin Optical Time Domain Analysis (Rayleigh BOTDA) system adopted the leakage light ahead of the pump pulse to generate Rayleigh back-scattering light.
Shang Qiufeng, Ren Wengang, Mao Xun, Zhang Lixin   +3 more
doaj   +1 more source

Time-domain Brillouin Scattering as a Local Temperature Probe in Liquids

, 2018
We present results of time-domain Brillouin scattering (TDBS) to determine the local temperature of liquids in contact to an optical transducer. TDBS is based on an ultrafast pump-probe technique to determine the light scattering frequency shift caused ...
Busselez, R., Chaban, I., Gusev, V., Klieber, C., Nelson, Keith A., Pezeril, T., Shin, H. D.   +6 more
core   +3 more sources