Results 31 to 40 of about 112,176 (189)
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 +8 more
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Optical vortex generation from molecular chromophore arrays [PDF]
, 2013 The generation of light endowed with orbital angular momentum, frequently termed optical vortex light, is commonly achieved by passing a conventional beam through suitably constructed optical elements. This Letter shows that the necessary phase structure
David L. Andrews +6 more
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Divergence of optical vortex beams [PDF]
Applied Optics, 2015 4 pages, 4 ...
Reddy, Salla Gangi +5 more
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Momentum transfer in a standing optical vortex
, 2008 A field superposition of singular beams incident on, and then reflected from a mirror has been investigated. It was demonstrated that the standing optical wave, which contains a vortex, possesses an orbital angle momentum where the energy flux circulates
Desyatnikov, Anton S +5 more
core +1 more source
Superposition of Optical Vortex Beams for Polarization Measurement
IEEE Photonics Journal, 2021 Polarization measurement has found applications in many fields ranging from quantum science to our daily life. However, traditional polarization measurement systems suffer from large volume and high cost.
Zhongqiang Zhang +4 more
doaj +1 more source
Vortex pump for Bose-Einstein condensates utilizing a time-averaged orbiting potential trap
, 2013 We show that topological vortex pumping can be implemented for a dilute Bose-Einstein condensate confined in a magnetic time-averaged orbiting potential trap with axial optical confinement.
Anderson, Brian P. +2 more
core +1 more source
Vortex preserving statistical optical beams
Optics Express, 2020 We establish a general form of the cross-spectral density of statistical sources that generate vortex preserving partially coherent beams on propagation through any linear ABCD optical system. We illustrate our results by introducing a class of partially coherent vortex beams with a closed form cross-spectral density at the source and demonstrating the
Zhiheng Xu +5 more
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Integrated optical vortex beam receivers [PDF]
Optics Express, 2016 A simple and ultra-compact integrated optical vortex beam receiver device is presented. The device is based on the coupling between the optical vortex modes and whispering gallery modes in a micro-ring resonator via embedded angular gratings, which provides the selective reception of optical vortex modes with definitive total angular momentum ...
Cicek, Kenan +11 more
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Vortex solitons in moiré optical lattices
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 +3 more
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Optical vortex torque measured with optically trapped microbarbells [PDF]
Applied Optics, 2020 Optical vortex beams carry orbital angular momentum and thus exert torque on illuminated objects. A dielectric microtool–a microbarbell–is used in two-laser optical tweezers to measure the torque of a focused optical vortex. The tool was either freely rotating due to the applied torque or set into oscillations by the counteracting force. Four different
Weronika Lamperska +3 more
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