Results 231 to 240 of about 24,867 (278)

Valley-controlled photoswitching of metal-insulator nanotextures. [PDF]

Nat Phys
Böckmann H, Horstmann JG, Kurtz F, Buriks M, Gadge K, Manmana SR, Wippermann S, Ropers C.   +7 more
europepmc   +1 more source

Diverse Responses in Lattice Thermal Conductivity of n-Type/p-Type Wurtzite Semiconductors Driven by Asymmetric Electron-Phonon Interactions. [PDF]

Adv Sci (Weinh)
Sun J, Li S, Tong Z, Shao C, Xie H, An M, Zhang C, Zhu X, Huang C, Wang Q, Xiong Y, Liu X.   +11 more
europepmc   +1 more source

Research on fault diagnosis method of fiber optic sensing roller driven by dynamic model. [PDF]

Sci Rep
Zhang H, Yang Z, Wu F, Liang S, Hu G, Hou D, Ding W, Yang F.   +7 more
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Mechanisms of multi-layered Rayleigh noise in Brillouin optical correlation-domain reflectometry. [PDF]

Sci Rep
Kikuchi K, Lee H, Inoue R, Noda K, Mizuno Y.   +4 more
europepmc   +1 more source

Ultrafast dynamics of vibronically dressed core excitons in graphite: a femtosecond RIXS perspective. [PDF]

Nat Commun
Malvestuto M, Volpato B, Babici E, Bhardwaj R, Caretta A, Laterza S, Parmigiani F, Manfredda M, Simoncig A, Zangrando M, Demidovich A, Susnjar P, Allaria EM, Brynes AD, Garzella D, Giannessi L, Rebernik P, Sottocorona F, Novko D.   +18 more
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Bandwidth-reduced Brillouin optical time domain reflectometry using reference Brillouin scattering

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
We present a bandwidth reduced BOTDR realized by using reference Brillouin scattering as a local light. Temperature distribution sensing is successfully demonstrated by compensating for the temperature variation in the reference fiber.
Daisuke Iida, Fumihiko Ito
openaire   +1 more source

Post-implantation depth profiling using time-domain Brillouin scattering

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2019
Abstract The unique capabilities of time domain Brillouin scattering (TDBS) for studying post-implantation effects on optical and opto-elastic properties of semiconductors are discussed. This method utilizes coherent acoustic phonons to measure depth-dependent optical and opto-elastic changes arising from structural damage caused by ion implantation.
Andrey Baydin, Halina Krzyzanowska, Leonard Feldman, Norman Tolk   +3 more
openaire   +1 more source

Enhanced polarization optical time domain reflectometry with Stimulated Brillouin scattering suppression

Asia Communications and Photonics Conference/International Conference on Information Photonics and Optical Communications 2020 (ACP/IPOC), 2020
A coherent P-OTDR system with phase modulation is proposed and demonstrated to suppress Stimulated Brillouin scattering and improve the probe power. With multiple-band probe, over 6 dB SNR improvement is achieved in 35 km sensing fiber.
Hong Zhang, Wenfeng Gan, Qianqian Zhang, Bo Su   +3 more
openaire   +1 more source

Wideband dectection of spontaneous Brillouin scattering spectrum in Brillouin optical time-domain reflectometry

SPIE Proceedings, 2008
Brillouin Optical Time-Domain Reflectometry (BOTDR) is attracting significant attention due to its immense potential applications in temperature or strain monitoring. Conventional BOTDR system based on Spontaneous Brillouin Scattering Spectrum(SBSS) narrow-band detection is not only time-consuming but also controlling complicated.
Yuangang Lu, Rongrong Dou, Xuping Zhang
openaire   +1 more source

Cost-effective bandwidth-reduced Brillouin optical time domain reflectometry using a reference Brillouin scattering beam

Applied Optics, 2009
We propose a simple and cost-effective technique that can reduce the electrical bandwidth for Brillouin frequency-shift sensors with heterodyne detection without the need for expensive instruments or a complicated system. With this technique we use only a reference fiber.
Daisuke, Iida, Fumihiko, Ito
openaire   +2 more sources