Results 51 to 60 of about 35,390 (284)

Nonlinear vortex light beams supported and stabilized by dissipation

, 2017
We describe nonlinear Bessel vortex beams as localized and stationary solutions with embedded vorticity to the nonlinear Schr\"odinger equation with a dissipative term that accounts for the multi-photon absorption processes taking place at high enough ...
A Couairon, A Couairon, AS Desyatnikov, AV Masalov, BA Malomed, BA Malomed, BA Malomed, C Rotschild, C Sulem, C Xie, D Mihalache, D Mihalache, D Mihalache, E Gaizauskas, E Knobloch, EA Kuznetsov, EL Falcao-Filho, G Fibich, H Saito, H Sakaguchi, I Yakimenko, IS Aranson, J Durnin, J Durnin, J Salo, J Schwarz, JE Curtis, JWR Tabosa, L Allen, L Bergé, LD Carr, M Daly, M Quiroga-Teixeiro, MA Porras, MA Porras, MA Porras, MA Porras, MA Porras, MJ Paz-Alonso, N Akhmediev, P Polesana, P Polesana, P Polesana, P Polesana, RJ Dodd, S Skupin, SK Adhikari, TJ Alexander, V Jukna, VI Kruglov, VI Kruglov, WJ Olver, Y Silberberg, YC Zhang, YS Kivshar, YS Kivshar   +55 more
core   +1 more source

Symmetric Olver beams

Results in Physics, 2023
This paper presents an innovative form of the symmetric and autofocusing beam in theory and experiment. These symmetric Olver beams (SOBs) originate from the spectral symmetry phase of the Olver beams.
Yidan Sun, Haobin Yang, Ziyu Wang, Danlin Xu, Junteng Li, Xin Zhao, Xuewen Long, Dongmei Deng   +7 more
doaj   +1 more source

Extension of Friedel's law to Vortex Beam Diffraction

, 2016
Friedel's law states that the modulus of the Fourier transform of real functions is centrosymmetric, while the phase is antisymmetric. As a consequence of this, elastic scattering of plane wave photons or electrons within the first-order Born ...
Guzzinati, Giulio, Juchtmans, Roeland, Verbeeck, Jo   +2 more
core   +1 more source

Abruptly autofocusing vortex beams

Optics Express, 2012
We generate abruptly autofocusing beams that produce vortices at the focus. We give explicit equations for the phase-only Fourier masks that generate these beams including explanations for controlling the focal distance and numerical aperture. We show experimental results for the focal distance, the vortex pattern and show that the diameter of the ...
Jeffrey A, Davis, Don M, Cottrell, David, Sand   +2 more
openaire   +2 more sources

Research progress on generating perfect vortex beams based on metasurfaces

Opto-Electronic Science
This article reviews the latest advances in the generation and control of perfect vector beams using metasurfaces. In recent years, metasurfaces have garnered increasing interest due to their simple fabrication and easy integration. Perfect vortex beams (
Xiujuan Liu, Manna Gu, Ying Tian, Mingfeng Zheng, Bo Fang, Zhi Hong, Chee Leong Tan, Xufeng Jing   +7 more
doaj   +1 more source

Controlled Generation and Manipulation of Vortex Dipoles in a Bose-Einstein Condensate

Physical Review X, 2011
We propose methods to generate and manipulate vortex dipoles in an atomic Bose-Einstein condensate using Gaussian beams of red- or blue-detuned laser. Vortex dipoles with controlled velocities are shown to be created and launched by a red-detuned beam ...
Tomohiko Aioi, Tsuyoshi Kadokura, Tetsuo Kishimoto, Hiroki Saito   +3 more
doaj   +1 more source

Interaction between anomalous vortex beams in nonlocal media

Results in Physics, 2017
In this paper, the interactional behaviors of anomalous vortex beams in highly nonlocal media are investigated. An analytical expression describing the interaction is given, and some numerical simulations are carried out to illustrate the interactional ...
Zhen-Jun Yang, Zhen-Feng Yang, Jian-Xing Li, Zhi-Ping Dai, Shu-Min Zhang, Xing-Liang Li   +5 more
doaj   +1 more source

Second-Harmonic Generation of the Vortex Beams with Integer and Fractional Topological Charges

Photonics, 2023
The single-pass second-harmonic generation (SHG) of a vortex beam under low fundamental wave depletion is systematically studied. Vortex modes at 1064 nm with integer topological charges from ±1 to ±9 and fractional ones at ±0.75 are generated by ...
Shirui Zhang, Weizhou Hou, Xin Tao, Minghao Guo, Yueqing Li, Peng Li   +5 more
doaj   +1 more source

Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters [PDF]

, 2017
Spatial modes have received substantial attention over the last decades and are used in optical communication applications. In fiber-optic communications, the employed linearly polarized modes and phase vortex modes carrying orbital angular momentum can ...
Cai, Xin-Lun, Chen, Shi, Du, Cheng, Klitis, Charalambos, Li, Shi-Mao, Liu, Jun, Mo, Qi, Sorel, Marc, Wang, An-Dong, Wang, Jian, Yu, Si-Yuan, Zhu, Long   +11 more
core   +1 more source

Modeling for Partially Spatially Coherent Vortex Beams

IEEE Photonics Journal, 2017
We propose a method for modeling a wide class of partially spatially coherent vortex beams. It is shown that any member of such beams can be represented as an incoherent superposition of fully coherent vortex models weighted by a non-negative weighting ...
Zhangrong Mei
doaj   +1 more source