Results 61 to 70 of about 16,209 (199)

Polarization dependent Brillouin gain in randomly birefringent fibers

, 2009
An extensive study of the alignment between the pump, the signal and the polarization dependent gain (PDG) vectors in stimulated Brillouin amplification in randomly birefringent fibers is realized by numerically integrating the equations governing the ...
Palmieri, Luca, Santagiustina, Marco, Ursini, Leonora   +2 more
core   +1 more source

Collective stimulated Brillouin scatter

, 2011
We develop a statistical theory of stimulated Brillouin backscatter (BSBS) of a spatially and temporally partially incoherent laser beam for laser fusion relevant plasma. We find a new collective regime of BSBS which has a much larger threshold than the classical threshold of a coherent beam in long-scale-length laser fusion plasma.
Korotkevich, Alexander O., Lushnikov, Pavel M., Rose, Harvey A.   +2 more
openaire   +2 more sources

Boosting Photo‐Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering

Advanced Science, EarlyView.
This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Yanli Huang, Haifen Luo, Jie Yin, Shuai Cao, Gaolei Dong, Zhi Tan, Chunlin Zhao, Peiye Wen, Fengwei Sun, Shan Zhang, Xianzeng Zhang, Yunlu Dai, Zhen Yang, Wei Huang   +13 more
wiley   +1 more source

Phase-locking in Multi-Frequency Brillouin Oscillator via Four Wave Mixing

, 2014
Stimulated Brillouin scattering (SBS) and Kerr-nonlinear four wave-mixing (FWM) are among the most important and widely studied nonlinear effects in optical fibres.
Boyd, Büttner, Eggleton, Ferdous, Hill, Hill, Pant, Slusher, Stolen, Tang, V.   +10 more
core   +1 more source

Stimulated Brillouin scattering in dispersed graphene

Optics Express, 2018
13 pages, 9 figures, and 3 ...
I. M. Kislyakov, J.-M. Nunzi, X. Zhang, Y. Xie, V. N. Bocharov, J. Wang   +5 more
openaire   +3 more sources

A High‐Performance and Fully Recyclable Supramolecular Nanofibrous Membrane for Multifunctional Air Filtration

Advanced Science, EarlyView.
A green, thermoreversible self‐assembly strategy yields a multifunctional and recyclable supramolecular nanofibrous membrane. Graphene oxide (GO) nanosheet acts as a heterogeneous nucleation‐templating agent, simultaneously modulating the supramolecular crystal packing while tailoring the nanofibrous architecture for elite performance.
Wenjing Sun, Ding Yuan, Jiaqi Wan, Junyu Chen, Zhen Yan, Yinuo Yan, Senjie Dong   +6 more
wiley   +1 more source

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

Kinetic effects in stimulated Brillouin scattering

, 2006
The role of ion and electron kinetic effects in the nonlinear evolution of stimulated Brillouin scattering (SBS) is investigated by means of particle-in-cell numerical simulations.
Adam, J.-C., Detering, F., Heron, A., Hüller, S., Masson-Laborde, P.-E., Pesme, D.   +5 more
core   +1 more source

Charge‐Acoustic Phonon Coupling Determined Carrier Transport Properties in FAxMA1−xPbBr3 Perovskite Single Crystals

Advanced Science, EarlyView.
This study investigates acoustic phonon‑carrier coupling in FAxMA1−xPbBr3 single crystals using time‑domain Brillouin scattering. The results show that increasing the FA content in FAxMA1−xPbBr3 single crystal reduces both the elastic constant and the intrinsic carrier mobility governed by the acoustic phonon‑carrier coupling.
Wei Zhang, Zheng Zou, Tiehui Wu, Zijie Xiao, Dan Feng, Jianbin Zhong, Xianshao Zou, Ningjiu Zhao   +7 more
wiley   +1 more source

Speed of sound measurement and mapping in transparent materials by impulsive stimulated Brillouin microscopy

JPhys Photonics
Impulsive stimulated Brillouin scattering (ISBS) is a variant of stimulated Brillouin scattering, which can overcome the shortcomings of the long acquisition time of traditional Brillouin microscopy.
Taoran Le, Jiarui Li, Haoyun Wei, Yan Li
doaj   +1 more source