Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Tyc, Tomas"'
Publikováno v:
Advances in Optics and Photonics 15, 524-612 (2023)
Light transport in a highly multimode fiber exhibits complex behavior in space, time, frequency and polarization, especially in the presence of mode coupling. The newly developed techniques of spatial wavefront shaping turn out to be highly suitable
Externí odkaz:
http://arxiv.org/abs/2305.09623
Autor:
Tyc, Tomáš, Cidlinský, Darek
Publikováno v:
Phys. Rev. E 106, 054202 (2022)
We introduce the spherical wedge billiard, a dynamical system consisting of a particle moving along a geodesic on a closed non-Euclidean surface of a spherical wedge. We derive the analytic form of the corresponding Poincar\'e map and find very compl
Externí odkaz:
http://arxiv.org/abs/2209.03096
Publikováno v:
Nature Communications 12, no. 1 (2021): 1-13
When light propagates through opaque material, the spatial information it holds becomes scrambled, but not necessarily lost. Two classes of techniques have emerged to recover this information: methods relying on optical memory effects, and transmissi
Externí odkaz:
http://arxiv.org/abs/2005.06445
Publikováno v:
In Optics and Laser Technology June 2023 161
Conformal transformation optics provides a simple scheme for manipulating light rays with inhomogeneous isotropic dielectrics. However, there is usually discontinuity for refractive index profile at branch cuts of different virtual Riemann sheets, he
Externí odkaz:
http://arxiv.org/abs/1802.00913
Starting from well-known absolute instruments for perfect imaging, we introduce a type of rotational-symmetrical compact closed manifolds, namely geodesic lenses. We demonstrate that light rays confined on geodesic lenses are closed trajectories. Whi
Externí odkaz:
http://arxiv.org/abs/1801.10438
Akademický článek
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We describe several extensions to TIM, a raytracing program for ray-optics research. These include relativistic raytracing; simulation of the external appearance of Eaton lenses, Luneburg lenses and generalized focusing gradient-index (GGRIN) lenses,
Externí odkaz:
http://arxiv.org/abs/1306.1661
Autor:
Sarbort, Martin, Tyc, Tomas
Publikováno v:
J. Opt. 15, 125716 (2013)
This paper presents a general approach to designing the isotropic spherical media with complex spatial structure that provide different types of imaging for different light rays. It is based on equivalence of the spherical medium and the correspondin
Externí odkaz:
http://arxiv.org/abs/1305.0696
Autor:
Tyc, Tomas
Publikováno v:
New J. Phys. 15, 065005 (2013)
We calculate frequency spectra of absolute optical instruments using the WKB approximation. The resulting eigenfrequencies approximate the actual values very accurately, in some cases they even give the exact values. Our calculations confirm results
Externí odkaz:
http://arxiv.org/abs/1304.0615