Novel Insights into Orbital Angular Momentum Beams: From Fundamentals, Devices to Applications

• Main Author: Ren, Yongxiong (auth)
• Other Authors: Yue, Yang (auth), Huang, Hao (auth), Pan, Zhongqi (auth), Willner, Alan E. (auth)
• Format: Electronic Book Chapter
• Language: English
• Published: MDPI - Multidisciplinary Digital Publishing Institute 2019
• Subjects: n/a; radio frequency; multi-input multi-output; photonic lantern; uniform circular array; turbulence mitigation; state of polarization; long period fiber grating; MIMO; frequency-domain; receiver; 28 GHz; metasurfaces; light-matter interactions; dielectric lens; free-space optical communications; helicity; orbital angular momentum multiplexing; OAM; orbital angular momentum; subwavelength digital gratings; nanofabrication; time-gated frequency-shift interpolation; silicon metasurfaces; phase mode; reactive ion etching; dual symmetry; bi-isotropic media; mode selective coupler; twisted waves; photonics lantern; pseudo-Doppler; chirality; OAM-MIMO; Poincaré sphere; electron beam lithography; Pancharatnam-Berry optical elements; polarization division multiplexing; mode division multiplexing; nonlinear optics; interpolation; microstructure optical fiber; tunable OAM; structured light
• Online Access: DOAB: download the publication; DOAB: description of the publication

It is well-known by now that the angular momentum carried by elementary particles can be categorized as spin angular momentum (SAM) and orbital angular momentum (OAM). In the early 1900s, Poynting recognized that a particle, such as a photon, can carry SAM, which has only two possible states, i.e.,...