Results 1 to 10 of about 42,188 (232)

Topological charge of a superposition of identical parallel single-ringed Laguerre-Gaussian beams

Компьютерная оптика, 2022
We study a superposition of several identical parallel single-ringed Laguerre-Gaussian beams. Both for the initial plane and for the far field, we show analytically and confirm numerically that if the weighting coefficients of the superposition are real ...
V.V. Kotlyar, A.A. Kovalev, A.A. Savelyeva   +2 more
doaj   +3 more sources

Tailoring the Topological Charge of a Superposition of Identical Parallel Laguerre–Gaussian Beams

Micromachines, 2022
In optical computing machines, data can be transmitted by optical vortices, and the information can be encoded by their topological charges. Thus, some optical mechanisms are needed for performing simple arithmetic operations with the topological charges.
Victor V. Kotlyar, Alexey A. Kovalev, Elena S. Kozlova, Alexandra A. Savelyeva   +3 more
doaj   +4 more sources

Pseudo-spin light circuits in nonlinear photonic crystals [PDF]

Nature Communications
Guiding light forms the backbone of numerous photonic circuits that allow complex, robust, and miniaturized light control. Commonly, guiding is achieved by modifying linear permittivity, resulting in a non-homogeneous linear medium.
Ofir Yesharim, Shani Izhak, Ady Arie
doaj   +3 more sources

Dynamic Phase and Polarization Modulation Using Two-Beam Parallel Coding for Optical Storage in Transparent Materials

Sensors, 2022
In this paper, we propose and experimentally demonstrate a parallel coding and two-beam combining approach for the simultaneous implementation of dynamically generating holographic patterns at their arbitrary linear polarization states.
Jintao Hong, Jin Li, Daping Chu
doaj   +2 more sources

Solar Concentrator Bio-Inspired by the Superposition Compound Eye for High-Concentration Photovoltaic System up to Thousands Fold Factor

Energies, 2022
We have proposed a fruitful design principle targeting a concentration ratio (CR) >1000× for a typical high concentrating photovoltaics (HCPV) system, on account of a two-concentrator system + homogenizer.
Duc Tu Vu, Ngoc Minh Kieu, Tran Quoc Tien, Thanh Phuong Nguyen, Hoang Vu, Seoyong Shin, Ngoc Hai Vu   +6 more
doaj   +2 more sources

Creating an Array of Parallel Vortical Optical Needles

Photonics
We propose a method for creating parallel Bessel-like vortical optical needles with an arbitrary axial intensity distribution via the superposition of different cone-angle Bessel vortices.
Paulius Šlevas, Sergej Orlov
doaj   +2 more sources

Common topological charge of several similar off-axis vortex light beams of arbitrary rotationally symmetric shape

Компьютерная оптика
We investigate the topological charge of superposition of parallel identical vortex beams of arbitrary shape – either Laguerre-Gaussian beams or Bessel-Gaussian beams or some other vortex beams with a rotationally symmetric intensity distribution.
A.A. Kovalev, V.V. Kotlyar, A.G. Nalimov
doaj   +2 more sources

State transfer with separable optical beams and variational quantum algorithms with classical light [PDF]

Journal of the Optical Society of America B, 2021
Classical electromagnetic fields and quantum mechanics– both obey the principle of superposition alike. This opens up many avenues for simulation of a large variety of phenomena and algorithms, which have hitherto been considered quantum mechanical.
Sooryansh Asthana, V. Ravishankar
semanticscholar   +1 more source

On the Presence and Thermalization of Cold Ions in the Exhaust of Antiparallel Symmetric Reconnection

Frontiers in Astronomy and Space Sciences, 2021
Using fully kinetic 2.5 dimensional particle-in-cell simulations of anti-parallel symmetric magnetic reconnection, we investigate how initially cold ions are captured by the reconnection process, and how they evolve and behave in the exhaust.
Cecilia Norgren , Paul Tenfjord , Michael Hesse , Sergio Toledo-Redondo , Wen-Ya Li , Yin Xu , Norah Kaggwa Kwagala , Susanne Spinnangr , Håkon Kolstø , Therese Moretto    +9 more
doaj   +1 more source

Response of Composite Beam Structure under Unbalanced Excitation of Rice Threshing System

Shock and Vibration, 2022
This paper studies the dynamic response of the support beam under the unbalanced excitation of the rice threshing system. The differential equation of motion of the supporting beam under the action of harmonic force is established by the modal ...
Xujun Zhai, Xingqin You, Hao Zhang, Zhong Tang, Xinzhong Wang, Guoqiang Wang   +5 more
doaj   +1 more source