Results 21 to 30 of about 65,338 (283)
A Riccati equation approach to construct new dispersive solitons to the Kaup-Newell equation [PDF]
Memoirs of the Scientific Sections of the Romanian Academy, 2020 The present paper examines analytically the Kaup-Newell equation, an important class of nonlinear Schrodinger equations with lots of applications in optical fibers. The Riccati equation approach is employed for the present study. The method is one of the
A. A. AL QARNI
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Rotating vortex imaging implemented by a quantized spiral phase modulation [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 We demonstrate both theoretically and experimentally that a spiral mask with a finite number of discrete phase levels allows a defocusing induced rotation of the point spread function in the vortex imaging.
Baránek M., Bouchal Z.
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Singular pseudodifferential calculus for wavetrains and pulses [PDF]
, 2014 International audienceWe develop a singular pseudodifferential calculus. The symbols that we consider do not satisfy the standard decay with respect to the frequency variables. We thus adopt a strategy based on the Calderon-Vaillancourt Theorem.
Coulombel, Jean-François +2 more
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Hybridization of singular plasmons via transformation optics [PDF]
Proceedings of the National Academy of Sciences, 2019 Significance Surface plasmons, which are optical resonances supported by metallic nanostructures, are extremely useful for manipulating light on the nanoscale. However, designing novel plasmonic devices becomes quite challenging when the desired spectral response pattern is highly complex.
Sanghyeon Yu, Habib Ammari
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Generation of hexagonal close-packed ring-shaped structures using an optical vortex
Nanophotonics, 2021 An optical vortex possesses a ring-shaped spatial profile and orbital angular momentum (OAM) owing to its helical wavefront. This form of structured light has garnered significant attention in recent years, and it has enabled new investigations in ...
Kawaguchi Haruki +9 more
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Transformation optics approach to singular metasurfaces [PDF]
Physical Review B, 2018 38 pages, 13 ...
Yang, F, Huidobro, PA, Pendry, JB
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Creating and Controlling Polarization Singularities in Plasmonic Fields
Photonics, 2015 Nanoscale light fields near nanoplasmonic objects can be highly structured and can contain highly-subwavelength features. Here, we present the results of our search for the simplest plasmonic system that contains, and can be used to control, the smallest
Anouk de Hoogh +3 more
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Frontiers in Physics, 2021 We report on the effects associated with photonic nanojet (PNJ) formation under illumination of a metallic spherical particle with a focused light beam with polarization singularity.
D. O. Plutenko, M. V. Vasnetsov
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Quasi-geometrical Optics Approximation in Gravitational Lensing
, 2004 The gravitational lensing of gravitational waves should be treated in the wave optics instead of the geometrical optics when the wave length $\lambda$ of the gravitational waves is larger than the Schwarzschild radius of the lens mass $M$.
Baraldo +15 more
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Using superoscillations for superresolved imaging and subwavelength focusing
Nanophotonics, 2018 It is now well-appreciated that a bandlimited wave can possess oscillations much more rapidly than those predicted by the bandlimit itself, in a phenomenon known as superoscillation.
Gbur Greg
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