Results 11 to 20 of about 2,790,274 (339)

Vortex solitons in moiré optical lattices [PDF]

Optics Letters, 2023
We show that optical moiré lattices enable the existence of vortex solitons of different types in self-focusing Kerr media. We address the properties of such states both in lattices having commensurate and incommensurate geometries (i.e., constructed with Pythagorean and non-Pythagorean twist angles, respectively), in the different regimes that occur ...
Sergey K. Ivanov, V. V. Konotop, Yaroslav V. Kartashov, Lluís Torner   +3 more
openalex   +4 more sources

Recent advances on optical vortex generation

Nanophotonics, 2018
This article reviews recent progress leading to the generation of optical vortex beams. After introducing the basics of optical vortex beams and their promising applications, we summarized different approaches for optical vortex generation by discrete ...
Wang Xuewen, Nie Zhongquan, Liang Yao, Wang Jian, Li Tao, Jia Baohua   +5 more
doaj   +2 more sources

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

Perfect Optical Vortex to Produce Controllable Spot Array

Frontiers in Physics, 2022
The perfect optical vortex has successfully aroused substantial interest from researchers for its central dark hollow caused by spatial phase singularity in recent years.
Xiaotong Jiang, Yuyuan Tian, Meiyu Sun, Zhigang Li, Dengying Zhang, Kunjian Cao, Qiang Shi, Qiang Shi, Linwei Zhu   +8 more
doaj   +2 more sources

Spiral Transformation for High-Resolution and Efficient Sorting of Optical Vortex Modes [PDF]

Physical Review Letters, 2018
Mode sorting is an essential function for optical multiplexing systems that exploit the orthogonality of the orbital angular momentum mode space. The familiar log-polar optical transformation provides a simple yet efficient approach whose resolution is ...
Yuanhui Wen, Ioannis Chremmos, Yujie Chen, Jiangbo Zhu, Yanfeng Zhang, Siyuan Yu   +5 more
openalex   +3 more sources

Spatial multiplexing for robust optical vortex transmission with optical nonlinearity. [PDF]

Opt Express, 2023
Fan W, Chen T, Tang X, Xu X, Yuan L, Yakovlev VV, Zhu SY, Wang DW, Zhang D.   +8 more
europepmc   +2 more sources

Time-resolved plasmon-assisted generation of optical-vortex pulses. [PDF]

Sci Rep, 2023
Albar EI, Bonafé FP, Kosheleva VP, Ohlmann ST, Appel H, Rubio A.   +5 more
europepmc   +3 more sources

Realization of all-optical vortex switching in exciton-polariton condensates. [PDF]

Nat Commun, 2020
Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the vorticity, they have been widely investigated in many physical systems and different materials for fundamental interest and for ...
Ma X, Berger B, Aßmann M, Driben R, Meier T, Schneider C, Höfling S, Schumacher S.   +7 more
europepmc   +3 more sources

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