Results 91 to 100 of about 145,179 (287)

Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding

Tongxin xuebao, 2020
In order to mitigate the crosstalk caused by oceanic turbulence in the underwater wireless orbital angular momentum multiplexing optical communication system, the application of space-time coding technology in the system was studied.Based on Rytov ...
Xiaoli YIN, Tong ZHENG, Zhiwen SUN, Zhaoyuan ZHANG   +3 more
doaj   +2 more sources

Orbital Angular Momentum in Scalar Diquark Model and QED

, 2011
We compare the orbital angular momentum of the 'quark' in the scalar diquark model as well as that of the electron in QED (to order {\alpha}) obtained from the Jaffe-Manohar de- composition to that obtained from the Ji relation.
F. Myhrer, Hikmat BC, M. Burkardt, Matthias Burkardt, R.L. Jaffe, S.J. Brodsky, S.J. Brodsky, X.-D. Ji, X.-D. Ji   +8 more
core   +1 more source

Quark Wigner Distributions and Orbital Angular Momentum [PDF]

, 2011
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space. These functions can be obtained through a Fourier transform in the transverse space of the generalized transverse-momentum ...
Lorce, Cedric, Pasquini, Barbara
core   +1 more source

Electronic Structure Reorganization in MPS3 via d‐Shell‐Selective Alkali Metal Doping

Advanced Science, EarlyView.
Alkali metal doping of layered MPS3 antiferromagnets reveals d‐shell‐selective responses. While MnPS3 resists charge transfer due to its half‐filled 3d5 shell, FePS3 and NiPS3 behave similarly to CoPS3 by accommodating extra d‐electrons. Yet only CoPS3, with its least stable d‐shell, undergoes pronounced band restructuring and a semiconducting‐to ...
Jonah Elias Nitschke, Preeti Bhumla, Till Willershausen, Patrick Merisescu, David Maximilian Janas, Lasse Sternemann, Michael Gutnikov, Karl Schiller, Valentin Mischke, Michele Capra, Mira Sophie Arndt, Silvana Botti, Mirko Cinchetti   +12 more
wiley   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Orbital chirality of light in few-mode step-index optical fibers

APL Photonics
A physical system is considered chiral when it can be distinguished from its mirror image, regardless of the applied translation and rotation. An electromagnetic wave can be chiral through its two essential forms of angular momenta: spin and orbital ...
Karolina Stefańska, Edouard Hertz, Karol Tarnowski, Bertrand Kibler, Pierre Béjot   +4 more
doaj   +1 more source

Topological photonic orbital-angular-momentum switch

Physical Review A, 2018
10 pages, 9 ...
Luo, Xi-Wang, Zhang, Chuanwei, Guo, Guang-Can, Zhou, Zheng-Wei   +3 more
openaire   +3 more sources

Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser

Advanced Science, EarlyView.
An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu, Aswathy Sundaresan, Nazire‐Begüm Kazkal, Clement Lafargue, Lior Zarfaty, Li‐Gang Wang, Ofek Birnholtz, Dominique Decanini, Melanie Lebental, Patrick Sebbah   +9 more
wiley   +1 more source

The Hall Effects of Vortex Light in Optical Materials

Advanced Photonics Research
For light, its spin can be independent of the spatial distribution of its wave function, whereas its intrinsic orbital angular momentum does depend on this distribution.
Wei‐Si Qiu, Li‐Li Yang, Dan‐Dan Lian, Peng‐Ming Zhang   +3 more
doaj   +1 more source

Management of the orbital angular momentum of vortex beams in a quadratic nonlinear interaction

, 2011
Light intensity control of the orbital angular momentum of the fundamental beam in a quadratic nonlinear process is theoretically and numerically presented.
Bertolotti, Mario, Bovino, Fabio A., Braccini, Matteo, Sibilia, Concita   +3 more
core   +1 more source