Results 1 to 10 of about 32,998 (164)
Origami Metawall: Mechanically Controlled Absorption and Deflection of Light [PDF]
Advanced Science, 2019 Metamaterials/metasurfaces, which have subwavelength resonating unit cells (i.e., meta‐atoms), can enable unprecedented control over the flow of light. Despite their significant progress, achieving dynamical control of both energy and momentum of light ...
Min Li +8 more
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Effect of the Cosmological Constant on Light Deflection: Time Transfer Function Approach
Universe, 2016 We revisit the role of the cosmological constant Λ in the deflection of light by means of the Schwarzschild–de Sitter/Kottler metric. In order to obtain the total deflection angle α, the time transfer function approach is adopted, instead of the commonly
Hideyoshi Arakida
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Henry Cavendish on Gravitational Deflection of Light
Annalen Der Physik, 2022 AbstractA recent analysis of two handwritten sheets of paper by Henry Cavendish (1731–1810) reveals the details of his calculation of the deflection of light induced by the gravitational field of isolated celestial bodies. Except for a few lines from one of these pages, where Cavendish communicated the result, the two documents have never been ...
Silvia Simionato
exaly +2 more sources
Testing new massive conformal gravity with the light deflection by black hole
Nuclear Physics B, 2023 We study the weak gravitational lensing effect of Non-Bocharova-Bronnikov-Melnikov-Bekenstein (BBMB) black hole in new massive conformal gravity. We analyze the deflection angle of light caused by new massive conformal gravity by using the Gauss-Bonnet ...
Muhammad Yasir +3 more
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Determining the Topology and Deflection Angle of Ringholes via Gauss-Bonnet Theorem
Universe, 2021 In this letter, we use a recent wormhole metric known as a ringhole [Gonzalez-Diaz, Phys. Rev. D 54, 6122, 1996] to determine the surface topology and the deflection angle of light in the weak limit approximation using the Gauss-Bonnet theorem (GBT).
Kimet Jusufi
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Opto-optical light deflection [PDF]
Applied Optics, 1983 Light deflection is accomplished by diffraction from a transient index modulation established as a grating of variable frequency in an optical material by the interference of two controlling light beams. This device may be considered an opto-optical analog to an acoustooptical deflector, in that a change in angular deflection is created by altering the
Sincerbox, Gleen T., Roosen, Gérald
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Gravitational deflection of massive particles in Schwarzschild-de Sitter spacetime
European Physical Journal C: Particles and Fields, 2020 In this paper, the gravitational deflection of a relativistic massive neutral particle in the Schwarzschild-de Sitter spacetime is studied via the Rindler–Ishak method in the weak-field limit.
Guansheng He +7 more
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Marat and the Deflection of Light [PDF]
Nature, 1920 CARLYLE'S vivid portraiture of Marat as “horse-leech” and savage revolutionist has rather obscured the fact that this “friend of the people” was a learned doctor of medicine, a physicist, and a physiologist. It is true that Carlyle refers to him as “Renovator of Human Science, Lecturer on Optics,” but the mistake about the “horse-leech” is repeated in ...
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The Effects of Finite Distance on the Gravitational Deflection Angle of Light
Universe, 2019 In order to clarify the effects of the finite distance from a lens object to a light source and a receiver, the gravitational deflection of light has been recently reexamined by using the Gauss−Bonnet (GB) theorem in differential geometry (Ishihara
Toshiaki Ono, Hideki Asada
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Polarization-dependent metalens with flexible and steerable bifocal spots
Results in Physics, 2023 Lenses are an important part of modern optical systems. We propose metalenses with bifocal spots, which realizes the beam focusing with controllable intensity ratio and free deflection of the bifocal spots.
Yuhang Sun +5 more
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