Results 31 to 40 of about 1,200,672 (302)
Polarization singularities in a stress-engineered optic.
Journal of the Optical Society of America A, 2019 We develop a simplified version of a recently presented model to simulate the oblique propagation of polarized light through a thick birefringent element known as a stress-engineered optic (SEO).
Ashan Ariyawansa, K. Liang, T. Brown
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Polarization singularities and optical chirality in dielectric metasurfaces [PDF]
EPJ Web of Conferences, 2022 We theoretically study the relation between polarization singularities and optical properties in dielectric metasurfaces, or photonic crystal slabs. We focus on nondegenerate photonic bands leading to symmetry-protected Bound States in a Continuum (BICs).
Andreani Lucio Claudio +4 more
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Optical force and torque on small particles induced by polarization singularities. [PDF]
Optics Express, 2022 Optical forces in the near fields have important applications in on-chip optical manipulations of small particles and molecules. Here, we report a study of optical force and torque on small particles induced by the optical polarization singularities of a
Jie Peng +3 more
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Engineering phase and polarization singularity sheets [PDF]
Nature Communications, 2021 AbstractOptical phase singularities are zeros of a scalar light field. The most systematically studied class of singular fields is vortices: beams with helical wavefronts and a linear (1D) singularity along the optical axis. Beyond these common and stable 1D topologies, we show that a broader family of zero-dimensional (point) and two-dimensional ...
Soon Wei Daniel Lim +4 more
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Компьютерная оптика, 2022 In this work, we study several different vector and hybrid light fields, including those with multiple polarization singularities. We derive polarization singularity indices by adopting a well-known M.V.
V.V. Kotlyar, A.A. Kovalev, V.D. Zaitsev
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Chiral discrimination by polarization singularities of a metal sphere [PDF]
Physical Review A, 2021 The practical applications of chiral discrimination are usually limited by the weak chiral response of enantiomers and the high complexity of detection methods.
Shiqi Jia +3 more
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Evolution of the Stokes parameters, polarization singularities, and optical skyrmion [PDF]
, 2021 A physical theory is presented for polarized light from an aspect of polarization singularity. This is carried out by analyzing the evolution equation of the Stokes parameters that is derived from the nonlinear Schr\"odinger type equation. The problem is
H. Kuratsuji, S. Tsuchida
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Topological Charge of Light Fields with a Polarization Singularity
Photonics, 2022 We have studied diverse vector and hybrid light fields, including those with multiple polarization singularities, and have derived relationships for polarization singularity indices based on the familiar Berry formula, which is normally utilized to find ...
Victor V. Kotlyar +2 more
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Evolution of coherence singularities in polarization singular beams
Applied Optics, 2023 The evolution of correlation singularities in partially coherent polarization singular beams (PC-PSBs) is investigated. Since PSBs are the superposition of two orthogonally polarized vortex beams, the occurrence of coherence singularities in PC-PSBs is strongly governed by the topological charge of the component vortex beams and the spatial coherence ...
Stuti Joshi +2 more
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Nanomaterials, 2022 We present the results of a study of the Poynting vector field generic singularities at the resonant light scattering of a plane monochromatic linearly polarized electromagnetic wave by a subwavelength particle.
Michael I. Tribelsky +1 more
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