Multichannel Superposition of Grafted Perfect Vortex Beams
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202203044
Abstract: Inspired by plant grafting, grafted vortex beams can be formed through grafting two or more helical phase profiles of optical vortex beams. Recently, grafted perfect vortex beams (GPVBs) have attracted much attention due to their… read more here.
Keywords: grafted perfect; optics; perfect vortex; metasurface ... See more keywords
Noncanonical perfect vortex beams enabled via nonuniformly varying phase gradient
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/1.5142650
Abstract: A method is proposed for generating noncanonical perfect vortex beams (PVBs) based on a theory deduced from the definition of topological charge. Varying the phase gradient of the light field in the region of the… read more here.
Keywords: phase; varying phase; perfect vortex; phase gradient ... See more keywords
Generation of Perfect Vortex Beams With Polymer-Based Phase Plate
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.2985745
Abstract: Perfect vortex beam has the characteristics of optical orbital angular momentum and is widely studied because of its advantages of a uniform ring profile and fixed radius. However, the current method of generating perfect vortex… read more here.
Keywords: vortex beams; perfect vortex; phase plate; phase ... See more keywords
Rapid generation of perfect vortex beam without side lobes
Sign Up to like & getrecommendations! Published in 2018 at "Modern Physics Letters B"
DOI: 10.1142/s0217984918502895
Abstract: We have proposed an approach for rapid generation of perfect vortex beam without side lobes through a digital micromirror device (DMD). Employing this method, the amplitude and phase of far field c... read more here.
Keywords: beam without; perfect vortex; vortex beam; generation perfect ... See more keywords
Generating ultraviolet perfect vortex beams using a high-efficiency broadband dielectric metasurface.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.451218
Abstract: Due to the topological charge-independent doughnut spatial structure as well as the association of orbital angular momentums, perfect vortex beams promise significant advances in fiber communication, optical manipulation and quantum optics. Inspired by the development… read more here.
Keywords: high efficiency; metasurface; vortex beams; perfect vortex ... See more keywords
Generation of multi-channel perfect vortex beams with the controllable ring radius and the topological charge based on an all-dielectric transmission metasurface.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.468616
Abstract: The perfect vortex (PV) beam, characterized by carrying orbital angular momentum and a radial electric intensity distribution independent of the topological charge, has important applications in optical communication, particle manipulation, and quantum optics. Conventional methods… read more here.
Keywords: topological charge; dielectric transmission; perfect vortex; phase ... See more keywords
Free-space creation of a perfect vortex beam with fractional topological charge.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.483304
Abstract: Perfect vortex beams can only propagate stably with integer topological charges. Thus, creating perfect fractional vortex beams capable of stable propagation in free space, as perfect integer vortex beams, is crucial. This study proposed perfect… read more here.
Keywords: topological charge; perfect vortex; free space; vortex ... See more keywords
Metasurface-based perfect vortex beams with trigonometric-function topological charge for OAM manipulation.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.488701
Abstract: Topological charge (TC) is generally acknowledged as an important attribute of an optical vortex (OV), which indicates the twisted characterization of the wavefront. In most circumstances, the TC remains constant as an integer or fraction… read more here.
Keywords: topological charge; oam manipulation; perfect vortex; manipulation ... See more keywords
Generation and Superposition of Perfect Vortex Beams in Terahertz Region via Single-Layer All-Dielectric Metasurface
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12173010
Abstract: Terahertz (THz) orbital angular momentum (OAM) technology provides promising applications in future wireless communication with large bandwidth and high capacity. However, the ring radius of the conventional THz vortex beam is related to the topological… read more here.
Keywords: dielectric metasurface; perfect vortex; generation; generation superposition ... See more keywords
Highly Efficient Perfect Vortex Beams Generation Based on All-Dielectric Metasurface for Ultraviolet Light
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12193285
Abstract: Featuring shorter wavelengths and high photon energy, ultraviolet (UV) light enables many exciting applications including photolithography, sensing, high-resolution imaging, and optical communication. The conventional methods of UV light manipulation through bulky optical components limit their… read more here.
Keywords: efficient perfect; highly efficient; perfect vortex; generation ... See more keywords