Results 41 to 50 of about 98,442 (290)

Rotating light, OAM paradox and relativistic complex scalar field

, 2008
Recent studies show that the angular momentum, both spin and orbital, of rotating light beams possesses counter-intuitive characteristics. We present a new approach to the question of orbital angular momentum of light based on the complex massless scalar
Aitchison I J R, Alexeyev C N, Eddington A S, Jackson J D, Moller C, Nienhuis G, S C Tiwari, Simmons J W, Stokes G G, Tiwari S C, Tiwari S C, Trocheris M G   +11 more
core   +1 more source

Digital spiral object identification using random light [PDF]

, 2017
Photons that are entangled or correlated in orbital angular momentum have been extensively used for remote sensing, object identification and imaging.
Boyd, Robert W, Gao, Boshen, Gao, Lu, Hashemi Rafsanjani, Seyed Mohammad, Long, Gui-Lu, Magaña-Loaiza, Omar S, Mirhosseini, Mohammad, Rafsanjani, Seyed Mohammad Hashemi, Yang, Zhe, Zhou, Yiyu   +9 more
core   +4 more sources

Orbital angular momentum divider of light

, 2016
7
Dong, Hailong Zhou Jianji, Li, Shimao, Cai, Xinlun, Yu, SiYuan, Zhang, Xinliang   +4 more
openaire   +2 more sources

Amplification and generation of ultra-intense twisted laser pulses via stimulated Raman scattering

Nature Communications, 2016
High intensity light with a non-zero orbital angular momentum could aid the development of laser-wakefield particle accelerators. Here, the authors theoretically show that stimulated Raman backscattering in plasmas can generate and amplify orbital ...
J. Vieira, R. M. G. M. Trines, E. P. Alves, R. A. Fonseca, J. T. Mendonça, R. Bingham, P. Norreys, L. O. Silva   +7 more
doaj   +1 more source

Transfer of Orbital Angular Momentum of Light Using Autler-Townes Splitting

Photonics, 2022
We propose a scheme to exchange optical vortices beyond electromagnetically induced transparency (EIT) but based on four-wave mixing (FWM) in a five-level atomic system consisting of two Λ subsystems linked via a weak driving field. When the laser fields
Seyyed Hossein Asadpour, Hamid Reza Hamedi, Emmanuel Paspalakis   +2 more
doaj   +1 more source

Transferring orbital and spin angular momenta of light to atoms

, 2010
Light beams carrying orbital angular momentum, such as Laguerre-Gaussian beams, give rise to the violation of the standard dipolar selection rules during the interaction with matter yielding, in general, an exchange of angular momentum larger than hbar ...
, A Benseny, A Picón, Christov I P, Cohen-Tannoudji C, Cohen-Tannoudji C, Faisal F H M, G F Calvo, Holland P R, J Mompart, J R Vázquez de Aldana, Klimov V V Bloch D Ducloy M Rios Leite J R, L Plaja, L Roso, Lai X Y, Lai X Y   +15 more
core   +1 more source

Hanbury Brown and Twiss Interferometry with Twisted Light [PDF]

, 2015
The rich physics exhibited by random optical wave fields permitted Hanbury Brown and Twiss to unveil fundamental aspects of light. Furthermore, it has been recognized that optical vortices are ubiquitous in random light and that the phase distribution ...
Boyd, Robert W., Cross, Robert M., Magana-Loaiza, Omar S., Mirhosseini, Mohammad, Rafsanjani, Seyed Mohammad Hashemi   +4 more
core   +5 more sources

Detection of a Spinning Object Using Light’s Orbital Angular Momentum [PDF]

Science, 2013
Doppler Effect with a Twist The Doppler shift is a familiar and well-understood effect in acoustics. Radar guns use the same effect to determine the speed of moving vehicles. Applied to a rotating object side-on, however, a linear Doppler effect would register no movement. Using twisted light, whereby photons are imprinted with a
Lavery, M.P.J, Speirits, F.C., Barnett, S.M., Padgett, M.J.   +3 more
openaire   +2 more sources

Propagable Optical Vortices with Natural Noninteger Orbital Angular Momentum in Free Space

Advanced Photonics Research, 2023
Light beams with optical vortices can propagate in free space only with integer orbital angular momentum. Herein, this scientific consensus theoretically and experimentally is upheaved by proposing light beams carrying natural noninteger orbital angular ...
Xiaoyu Weng, Yu Miao, Guanxue Wang, Qiufang Zhan, Xiangmei Dong, Junle Qu, Xiumin Gao, Songlin Zhuang   +7 more
doaj   +1 more source

Gravitational orbital Hall effect of vortex light in Lense–Thirring metric

European Physical Journal C: Particles and Fields
Vortex light, characterized by an intrinsic orbital angular momentum aligned with its propagation direction, is described through vortex electromagnetic waves.
Wei-Si Qiu, Dan-Dan Lian, Peng-Ming Zhang   +2 more
doaj   +1 more source