Results 41 to 50 of about 89,505 (296)

Detecting Chiral Edge States in the Hofstadter Optical Lattice

, 2012
We propose a realistic scheme to detect topological edge states in an optical lattice subjected to a synthetic magnetic field, based on a generalization of Bragg spectroscopy sensitive to angular momentum.
Beugnon, Jerome, Gerbier, Fabrice, Goldman, Nathan   +2 more
core   +2 more sources

Acoustic edge mode in spiral-based metamaterials at subwavelength scale

Results in Physics, 2022
Recently, the quantum effect of condensed matter physics is introduced into the acoustic field, which lays a new pathway to manipulate the acoustic wave.
Tao Yang, Boya Xiao, Yafei Feng, Dongliang Pei, Yu Liu, Meng Chen, Heng Jiang, Zhongyu Zheng, Yuren Wang   +8 more
doaj   +1 more source

Identifying topological edge states in 2D optical lattices using light scattering

, 2013
We recently proposed in a Letter [Physical Review Letters 108 255303] a novel scheme to detect topological edge states in an optical lattice, based on a generalization of Bragg spectroscopy.
A. Bermudez, A. Bermudez, A. Dauphin, A.S. Sørensen, B. Dellabetta, C.V. Kraus, D. Bercioux, D. Jaksch, D.J. Thouless, D.R. Hofstadter, E. Alba, E. Zhao, F. Gerbier, Fabrice Gerbier, H. Price, I. Bloch, J. Dalibard, J. Steinhauer, J. Stenger, J. Struck, J.F. Sherson, J.M. Pino, J.P. Brantut, Jérôme Beugnon, K. Jiménez-García, L.W. Cheuk, M. Aidelsburger, M. Buchhold, M. Hafezi, M. Kohmoto, M. Lewenstein, M. Rosenkranz, M.Z. Hasan, N. Goldman, N. Goldman, N. Goldman, N. Goldman, N. Goldman, N.D. Lemke, N.R. Cooper, N.Y. Yao, Nathan Goldman, P. Hauke, P. Wang, R. Palmer, R.O. Umucalilar, T.D. Stanescu, W.S. Bakr, X.J. Liu, X.L. Qi, X.L. Qi, Y. Hatsugai, Y.J. Lin, Y.J. Lin   +53 more
core   +2 more sources

Spatially selective excitation of spin dynamics in magneto-photonic crystals by spectrally tunable ultrashort laser pulses

Nanophotonics, 2022
In this work, we tackle the problem of the spatially selective optical excitation of spin dynamics in structures with multiple magnetic layers. The 120 fs circularly polarized laser pulses were used to launch magnetization precession in an all-dielectric
Sylgacheva Daria A., Khokhlov Nikolai E., Gerevenkov Petr I., Filatov Iaroslav A., Kozhaev Mikhail A., Savochkin Igor V., Kalish Andrey N., Kalashnikova Alexandra M., Belotelov Vladimir I.   +8 more
doaj   +1 more source

Isotropic Two-Dimensional Differentiation Based on Dual Dynamic Volume Holograms

Photonics, 2023
We study the use of two dynamic thick holograms to realize isotropic two-dimensional (2D) differentiation under Bragg diffraction. Acousto-optic modulators (AOMs) are used as dynamic volume holograms.
Pin Wang, Houxin Fan, Yaping Zhang, Yongwei Yao, Bing Zhang, Wenlong Qin, Ting-Chung Poon   +6 more
doaj   +1 more source

Quantum Anomalous Hall Effect with Cold Atoms Trapped in a Square Lattice [PDF]

, 2010
We propose an experimental scheme to realize and detect the quantum anomalous Hall effect in an anisotropic square optical lattice which can be generated from available experimental set-ups of double-well lattices with minor modifications.
Liu, Xin, Liu, Xiong-Jun, Sinova, Jairo, Wu, Congjun   +3 more
core   +2 more sources

Feedback Control of Flow Separation Using Plasma Actuator and FBG Sensor

International Journal of Aerospace Engineering, 2016
A feedback control system for mitigating flow separation was developed by using a string-type dielectric-barrier-discharge (DBD) plasma actuator and a fiber Bragg grating (FBG) sensor. Tangential jets were induced from the string-type DBD plasma actuator,
Takehiko Segawa, Daiki Suzuki, Takayasu Fujino, Timothy Jukes, Takayuki Matsunuma   +4 more
doaj   +1 more source

Spectral-Free Double Light Detection of DNA Based on a Porous Silicon Bragg Mirror

Sensors, 2022
To improve the detection sensitivity of a porous silicon optical biosensor in the real-time detection of biomolecules, a non-spectral porous silicon optical biosensor technology, based on dual-signal light detection, is proposed.
Shuangshuang Zhang, Miao Sun, Xinli Wang, Jiajia Wang, Zhenhong Jia, Xiaoyi Lv, Xiaohui Huang   +6 more
doaj   +1 more source

Bragg Polaritons: Strong Coupling and Amplification in an Unfolded Microcavity

, 2011
Periodic incorporation of quantum wells inside a one--dimensional Bragg structure is shown to enhance coherent coupling of excitons to the electromagnetic Bloch waves.
Askitopoulos, A., Baumberg, J. J., Christmann, G., Hatzopoulos, Z., Iorsh, I., Kaliteevski, M. A., Mouchliadis, L., Savvidis, P. G.   +7 more
core   +1 more source

Tomographic reconstruction of triaxial strain fields from Bragg-edge neutron imaging [PDF]

Physical Review Materials, 2019
This paper presents a proof-of-concept demonstration of triaxial strain tomography from Bragg-edge neutron imaging within a three-dimensional sample. Bragg-edge neutron transmission can provide high-resolution images of the average through thickness strain within a polycrystalline material.
J. N. Hendriks, A. W. T. Gregg, R. R. Jackson, C. M. Wensrich, A. Wills, A. S. Tremsin, T. Shinohara, V. Luzin, O. Kirstein   +8 more
openaire   +2 more sources