Results 1 to 10 of about 112,176 (189)

Angular-multiplexed multichannel optical vortex arrays generators based on geometric metasurface [PDF]

iScience, 2021
Summary: Recently, metasurface-based multichannel optical vortex arrays have attracted considerable interests due to its promising applications in high-dimensional information storage and high-secure information encryption.
Jinjin Jin, Xiong Li, Mingbo Pu, Yinghui Guo, Ping Gao, Mingfeng Xu, Zuojun Zhang, Xiangang Luo   +7 more
doaj   +2 more sources

Spin-orbit coupling in van der Waals materials for optical vortex generation [PDF]

Light: Science & Applications
An optical vortex beam has attracted significant attention across diverse applications, including optical manipulation, phase-contrast microscopy, optical communication, and quantum photonics.
Jaegang Jo, Sujeong Byun, Munseong Bae, Jianwei Wang, Haejun Chung, Sejeong Kim   +5 more
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Centrosymmetric Optical Vortex [PDF]

Applied Sciences, 2019
We report on a novel optical vortex, named as centrosymmetric optical vortex (CSOV), which is constructed via four conventional optical vortices (OVs) with different topological charges (TCs).
Hao Zhang, Xinzhong Li, Haixiang Ma, Miaomiao Tang, Hehe Li, Yangjian Cai   +5 more
doaj   +2 more sources

Spatiotemporal optical vortex reconnections of multi-vortices [PDF]

Scientific Reports
Vortex reconnections are ubiquitous events found in diverse media. Here we show that vortex reconnections also occur between spatiotemporal vortices in optical waves.
Jordan Adams, Imad Agha, Andy Chong
doaj   +2 more sources

Near and mid-infrared optical vortex parametric oscillator based on KTA [PDF]

Scientific Reports, 2021
We investigated high energy, near and mid-infrared optical vortex lasers formed by a 1 μm optical vortex-pumped KTiOAsO4 (KTA) optical parametric oscillator. The orbital angular momentum (OAM) of the pump beam can be selectively transferred to the signal
Mairihaba Ababaike, Shutong Wang, Palidan Aierken, Takashige Omatsu, Taximaiti Yusufu   +4 more
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Azimuthally dependent absorption and gain in an atomic system with spontaneously generated coherence controlled by an optical vortex field [PDF]

Scientific Reports
This paper examines spatially dependent absorption and gain of a weak probe field in a 3-level atomic $$\Lambda$$ -system with spontaneously generated coherence and incoherent pump, using an optical vortex beam as the control field.
Viačeslav Kudriašov, Teodora Kirova, Seyyed Hossein Asadpour, Hamid R. Hamedi   +3 more
doaj   +2 more sources

Theoretical study of vortex beam generation based on geometric coordinate transformation

Frontiers in Physics, 2022
By performing a conformal optical mapping of an input beam from Cartesian to log-polar coordinates, we propose a method to generate vortex beam. By tilting the incident beam, a phase gradient is attached and evolves into a vortex phase due to the optical
Yanke Li, Yuqing Xie, Sheng Liu, Peng Li, Bingyan Wei, Jianlin Zhao   +5 more
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Experimental investigation in Airy transform of Gaussian beams with optical vortex

Results in Physics, 2021
The Airy transform was first introduced for a Gaussian beam, and the output beam is an Airy beam. When the Gaussian beam is extended to the Gaussian beam with optical vortex, what kind of output beam will be achieved by executing the Airy transformation.
Yi-Qing Xu, Xia Li, Lu Zhou, Yi-Min Zhou, Fei Wang, Guo-Quan Zhou   +5 more
doaj   +1 more source

Terawatt-Class Few-Cycle Short-Wave Infrared Vortex Laser

Ultrafast Science, 2023
As a driving source for many nonlinear vortex phenomena, such as the generation of isolated attosecond optical vortices, terahertz vortices, etc., terawatt-class few-cycle short-wave infrared vortex lasers are now attracting widespread attention. However,
Renyu Feng, Junyu Qian, Yujie Peng, Yanyan Li, Wenkai Li, Yuxin Leng, Ruxin Li   +6 more
doaj   +1 more source

Spatiotemporal optical vortex combs. [PDF]

Nat Commun
Feng F, Hou G, Zhang Z, Ma S, Ma H, Li X, Lin Q, Zhao X, Somekh MG, Yuan X.   +9 more
europepmc   +2 more sources