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Related papers: Hyperbolic geometrical optics: Hyperbolic glass

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Guided wave modes in a symmetric slab waveguide formed by an isotropic dielectric layer with cubic nonlinear response placed in the hyperbolic surrounding medium are investigated theoretically. Optical axis of the hyperbolic medium is…

Optics · Physics 2017-03-01 Ekaterina I. Lyashko , Andrei I. Maimistov

There are two main approaches to solve inverse coefficient determination problems for wave equations: the Boundary Control method and an approach based on geometric optics. These notes focus on the Boundary Control method, but we will have…

Analysis of PDEs · Mathematics 2026-04-14 Medet Nursultanov , Lauri Oksanen

Uniaxial materials whose axial and tangential permittivities have opposite signs are referred to as indefinite or hyperbolic media. In such materials light propagation is unusual, leading to novel and often non-intuitive optical phenomena.…

The point of the paper is to show some limitations of geometrical optics in the analysis of subwavelength focusing. We analyze the resolution of the image of a line source radiating in the Maxwell fisheye and the Veselago-Pendry slab lens.…

Optics · Physics 2010-09-03 Sebastien Guenneau , Andre Diatta , Ross McPhedran

We study the geometrical-optics expansion for circularly-polarized electromagnetic waves propagating on a curved spacetime in general relativity. We show that higher-order corrections to the Faraday and stress-energy tensors may be found…

General Relativity and Quantum Cosmology · Physics 2018-06-28 Sam R Dolan

The consideration of the so-called rotation minimizing frames allows for a simple and elegant characterization of plane and spherical curves in Euclidean space via a linear equation relating the coefficients that dictate the frame motion.…

Differential Geometry · Mathematics 2018-03-28 Luiz C. B. da Silva , José Deibsom da Silva

We describe a statistical analysis of the eye tracker measurements in a database with 15 observers viewing 1003 images under free-viewing conditions. In contrast to the common approach of investigating the properties of the fixation points…

Computer Vision and Pattern Recognition · Computer Science 2014-06-25 Reiner Lenz

We study the inverse curve shortening flow in the hyperbolic plane $\h^2$. We classify all solitons with respect to parabolic and conformal vector fields of $\h^2$. In the upper half-plane model of $\h^2$, we prove that parabolic solitons…

Differential Geometry · Mathematics 2026-05-15 Ivan Krznarić , Rafael López

The Helfrich model is a fundamental tool for determining the morphology of biological membranes. We relate the geometry of an important class of its equilibria to the geometry of sessile and pendant drops in the hyperbolic space ${\bf…

Differential Geometry · Mathematics 2026-03-02 Bennett Palmer , Alvaro Pampano

Moving metasurfaces support guided waves exhibiting unusual optical properties, including strong anisotropy, nonreciprocity, and hyperbolic dispersion. However, for these phenomena to be noticeable, high speeds are typically required,…

Optics · Physics 2020-04-22 Yarden Mazor , Andrea Alù

In this chapter, criteria for existence of propagating optical modes which are transversely bound at the interface of two materials are studied. In particular, quite general cases are considered, where the materials involved are assumed to…

Optics · Physics 2017-09-19 Nahid Talebi

The union of the particles of a stationary Poisson process of compact (convex) sets in Euclidean space is called Boolean model and is a classical topic of stochastic geometry. In this paper, Boolean models in hyperbolic space are…

Probability · Mathematics 2024-08-08 Daniel Hug , Günter Last , Matthias Schulte

The symmedian point of a triangle enjoys several geometric and optimality properties, which also serve to define it. We develop a new dynamical coordinatization of the symmedian, which naturally generalizes to other ideal hyperbolic…

Differential Geometry · Mathematics 2025-03-21 Maxim Arnold , Carlos E. Arreche

In this paper, we classify all of the five-sided three-dimensional hyperbolic polyhedra with one ideal vertex, which have the shape of a triangular prism. We show how to find each such polyhedron in the upper half-space model by considering…

Geometric Topology · Mathematics 2020-07-15 Grant S. Lakeland , Corinne G. Roth

We develop a geometric description of quantum light in photonic time crystals on the SU(1,1) coherent-state manifold. In a projective picture, the evolution of each mode appears as a M\"obius isometry on the Poincar\'e disk, where…

The geometric phase is a universal concept in modern physics and has enabled the development of metasurfaces for versatile wavefront shaping. However, its realization in metasurfaces has been restricted to circularly polarized light,…

Optics · Physics 2025-11-11 Yubin Gao , Qikai Chen , Yaoguang Ma

This is a tale describing the large scale geometry of Euclidean plane domains with their hyperbolic or quasihyperbolic distances. We prove that in any hyperbolic plane domain, hyperbolic and quasihyperbolic quasi-geodesics are the same…

Metric Geometry · Mathematics 2017-04-25 David A Herron , Stephen M Buckley

We describe how to represent Rosen continued fractions by paths in a class of graphs that arise naturally in hyperbolic geometry. This representation gives insight into Rosen's original work about words in Hecke groups, and it also helps us…

Number Theory · Mathematics 2015-04-22 Ian Short , Mairi Walker

The free surface of hydrodynamic waves behaves as a time-varying planar curvilinear mirror, whose focal properties determine the light intensity distribution in a reflected light beam. Variational criteria for determination of foci of…

Optics · Physics 2011-10-25 German Da Costa

In the contact-geometric approach to general relativity, the sky of an event - namely, the set of all incoming light rays - forms a Legendrian submanifold of the spherical cotangent bundle of a Cauchy hypersurface. When the hypersurface is…

General Relativity and Quantum Cosmology · Physics 2026-03-31 Leonid Polterovich
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