scholarly journals Experimental demonstration of cylindrical vector spatiotemporal optical vortex

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jian Chen ◽  
Chenhao Wan ◽  
Andy Chong ◽  
Qiwen Zhan
Keyword(s):  
Angular Momentum ◽  
Optical Tweezers ◽  
Orbital Angular Momentum ◽  
Optical Vortex ◽  
Spin Orbit ◽  
Experimental Demonstration ◽  
Matter Interaction ◽  
Light Matter Interaction ◽  
Angular Momentum Coupling ◽  
Momentum Coupling

Abstract We experimentally generate cylindrically polarized wavepackets with transverse orbital angular momentum, demonstrating the coexistence of spatiotemporal optical vortex with spatial polarization singularity. The results in this paper extend the study of spatiotemporal wavepackets to a broader scope, paving the way for its applications in various areas such as light–matter interaction, optical tweezers, spatiotemporal spin–orbit angular momentum coupling, etc.

Spin-Orbital Angular Momentum of Light and Its Application

2020 ◽  
Vol 29 (10) ◽  
pp. 28-31
Author(s):  
Teun-Teun KIM
Keyword(s):  
Angular Momentum ◽  
Quantum Entanglement ◽  
Orbital Angular Momentum ◽  
Phase Distribution ◽  
Optical Vortex ◽  
Spin Orbit ◽  
Vortex Beam ◽  
Spin Orbital ◽  
Matter Interaction ◽  
Light Matter Interaction

Like the eletron, the photon carries spin and orbital angular momentum caused by the polarization and the spatial phase distribution of light, respectively. Since the first observation of an optical vortex beam with orbital angular momentum (OAM), the use of an optical vortex beam has led to further studies on the light-matter interaction, the quantum nature of light, and a number of applications. In this article, using a metasurface with geometrical phase, we introduce the fundamental origins and some important applications of light with spin-orbit angular momentum as examples, including optical vortex tweezer and quantum entanglement of the spin-orbital angular momentum.

Constructive spin-orbital angular momentum coupling can twist materials to create spiral structures in optical vortex illumination

2016 ◽  
Vol 108 (5) ◽  
pp. 051108 ◽  
Author(s):  
Daisuke Barada ◽  
Guzhaliayi Juman ◽  
Itsuki Yoshida ◽  
Katsuhiko Miyamoto ◽  
Shigeo Kawata ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Optical Vortex ◽  
Spin Orbital ◽  
Spiral Structures ◽  
Angular Momentum Coupling ◽  
Momentum Coupling

scholarly journals Optical vortex lattice: an exploitation of orbital angular momentum

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Liuhao Zhu ◽  
Miaomiao Tang ◽  
Hehe Li ◽  
Yuping Tai ◽  
Xinzhong Li
Keyword(s):  
Angular Momentum ◽  
Optical Tweezers ◽  
Orbital Angular Momentum ◽  
Vortex Lattice ◽  
Optical Vortex ◽  
Yeast Cells ◽  
Particle Manipulation ◽  
Complex Motion ◽  
Potential Applications ◽  
Vortex Beams

Abstract Generally, an optical vortex lattice (OVL) is generated via the superposition of two specific vortex beams. Thus far, OVL has been successfully employed to trap atoms via the dark cores. The topological charge (TC) on each optical vortex (OV) in the lattice is only ±1. Consequently, the orbital angular momentum (OAM) on the lattice is ignored. To expand the potential applications, it is necessary to rediscover and exploit OAM. Here we propose a novel high-order OVL (HO-OVL) that combines the phase multiplication and the arbitrary mode-controllable techniques. TC on each OV in the lattice is up to 51, which generates sufficient OAM to manipulate microparticles. Thereafter, the entire lattice can be modulated to desirable arbitrary modes. Finally, yeast cells are trapped and rotated by the proposed HO-OVL. To the best of our knowledge, this is the first realization of the complex motion of microparticles via OVL. Thus, this work successfully exploits OAM on OVL, thereby revealing potential applications in particle manipulation and optical tweezers.

Orbital angular momentum filter of photon based on spin-orbital angular momentum coupling

2015 ◽  
Vol 379 (39) ◽  
pp. 2530-2534 ◽  
Author(s):  
Dong-Xu Chen ◽  
Pei Zhang ◽  
Rui-Feng Liu ◽  
Hong-Rong Li ◽  
Hong Gao ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Spin Orbital ◽  
Angular Momentum Coupling ◽  
Momentum Coupling

scholarly journals Polarised Electron Study of Angular Momentum Coupling in the Neon 3p States

1997 ◽  
Vol 50 (3) ◽  
pp. 639
Author(s):  
D. H. Yu ◽  
P. A. Hayes ◽  
J. F. Williams ◽  
J. E. Furst
Keyword(s):  
Angular Momentum ◽  
Exchange Interactions ◽  
Negative Ion ◽  
Stokes Parameters ◽  
Spin Orbit ◽  
Electron Study ◽  
Atomic Electrons ◽  
Angular Momentum Coupling ◽  
Momentum Coupling

The excitation of the 2p5 3p[]3 and 2p5 3p′[½]1 states in the neon 3p manifold by transversally polarised electrons is studied in the electron energy region near threshold and beyond. The spin-orbit and exchange interactions during the excitation are explored by the measurement of integrated Stokes parameters P2 and P3 for the decay radiation from these states. Experimental evidence is given for the breakdown of LS coupling for the neon 3p (J = 1) state and the important role of spin–orbit and exchange interactions of the atomic electrons for the excitation of the state. Negative ion resonances strongly influence the polarisations of the decay radiations.

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