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Engineering phase and polarization singularity sheets [PDF]
Nature Communications, 2021 Metasurfaces allow for vast possibilities of light control. Here, the authors demonstrate on-demand engineering and realization of a broad family of two-dimensional phase singularity sheets and transverse polarization singularity sheets, opening up new ...
Soon Wei Daniel Lim +4 more
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Singularity transformation through single-pass phase modulation of light [PDF]
Scientific ReportsThe emergence of optical vortex phenomena has generated significant interest in optical technologies. By manipulating light parameters such as amplitude, phase, and polarization, new advances have been made in structured light techniques, which enable ...
Laxminarayan +3 more
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Exploiting hidden singularity on the surface of the Poincaré sphere [PDF]
Nature CommunicationsThe classical Pancharatnam-Berry phase, a variant of the geometric phase, arises purely from the modulation of the polarization state of a light beam. Due to its dependence on polarization changes, it cannot be effectively utilized for wavefront shaping ...
Jinxing Li +5 more
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Generation of V-point polarization singularity using single phase encoding with a spatial light modulator. [PDF]
Sci Rep, 2023 A liquid crystal Spatial Light Modulator (SLM) can be used in various ways to produce vector-vortices. Superposition of scalar vortices with orthogonal polarization is a common approach, while a more recent technique is to use dual-phase modulation ...
Kumar P, Rao AS, Omatsu T.
europepmc +2 more sources
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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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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Sharp Focusing of a Hybrid Vector Beam with a Polarization Singularity
Photonics, 2021 The key result of this work is the use of the global characteristics of the polarization singularities of the entire beam as a whole, rather than the analysis of local polarization, Stokes and Poincare–Hopf indices.
Victor V. Kotlyar +2 more
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Acceleration toward polarization singularity inspired by relativistic E×B drift. [PDF]
Sci Rep, 2016 The relativistic trajectory of a charged particle driven by the Lorentz force is different from the classical one, by velocity-dependent relativistic acceleration term.
Yu S, Piao X, Park N.
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Dielectric metasurfaces based on a phase singularity in the region of high reflectance [PDF]
NanophotonicsMetasurfaces, two-dimensional planar optical devices based on subwavelength-scale structures, have garnered significant attention for their potential to replace conventional optical components in various fields. These devices can manipulate the amplitude,
Jang Jaewon +5 more
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Focusing of a vector beam with C-lines of polarization singularity
Компьютерная оптика, 2021 We discuss the sharp focusing of an initial hybrid vector light field of the n-th order that has n C-lines (lines along which the polarization is circular). Using a complex Stokes field, it is shown that the polarization singularity index of such a field
V.V. Kotlyar, S.S. Stafeev, A.G. Nalimov
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