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Related papers: Equitable Mirrors

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Do object part localization methods produce bilaterally symmetric results on mirror images? Surprisingly not, even though state of the art methods augment the training set with mirrored images. In this paper we take a closer look into this…

Computer Vision and Pattern Recognition · Computer Science 2015-01-22 Heng Yang , Ioannis Patras

This is a survey article on mirror symmetry and Fourier-Mukai partners of Calabi-Yau threefolds with Picard number one based on recent works by the authors [HoTa1,2,3,4]. For completeness, mirror symmetry and Fourier-Mukai partners of K3…

Algebraic Geometry · Mathematics 2015-12-29 Shinobu Hosono , Hiromichi Takagi

Previous research has attempted to minimize the influence of loss in reflection- and transmission-type acoustic metasurfaces. This letter shows that, by treating the acoustic metasurface as a non-Hermitian system and by harnessing loss,…

Applied Physics · Physics 2019-11-27 Xu Wang , Xinsheng Fang , Dongxing Mao , Yun Jing , Yong Li

We investigate geometric invariants of cuspidal edges on focal surfaces of regular surface. In particular, we shall clarify the sign of the singular curvature at a cuspidal edge on a focal surface using singularities of parallel surface of…

Differential Geometry · Mathematics 2026-05-19 Keisuke Teramoto

The new property of minimal surfaces is obtained in this article.

Differential Geometry · Mathematics 2007-05-23 Andrei Bodrenko

Optical chirality has been recently suggested to complement the physically relevant conserved quantities of the well-known Maxwell's equations. This time-even pseudoscalar is expected to provide further insight in polarization phenomena of…

Periodic layered media can reflect strongly for all incident angles and polarizations in a given frequency range. Quarter-wave stacks at normal incidence are commonplace in the design of such omnidirectional reflectors. We discuss…

Optics · Physics 2009-11-10 T. Yonte , J. J. Monzon , A. Felipe , L. L. Sanchez-Soto

This expository article discusses recent advances in understanding 3-dimensional mirror symmetry and the mathematical definitions of the Higgs and Coulomb branches. This is a slightly expanded version of an article appearing in the Notices…

Mathematical Physics · Physics 2023-08-14 Ben Webster , Philsang Yoo

Co-phase and co-focus detection is one of the key technologies for large-aperture segmented mirror telescopes. In this paper, a new edge sensor based on fringes of equal thickness is developed, which can detect each segment's relative…

Instrumentation and Methods for Astrophysics · Physics 2023-06-27 Xi Zhang , Heng Zuo , Yong Zhang , Ye-Ping Li

We study ray optics in the context of double mirror systems, in the limit as the two mirrors approach one another (thin films). This leads to a novel set of differential equations on a mirror surface which have interesting structure as seen…

Exactly Solvable and Integrable Systems · Physics 2016-01-13 Ronald Perline

This paper presents a novel technique for camera calibration using a single view that incorporates a spherical mirror. Leveraging the distinct characteristics of the sphere's contour visible in the image and its reflections, we showcase the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Nissim Barzilay , Ofek Narinsky , Michael Werman

Micro-scanners have been widely used in many optical applications. The micro-scanner presented in this paper uses multimorph-type bending actuators to tilt a square plate mirror. This paper presents a complete analytical model of the…

Other Computer Science · Computer Science 2008-02-22 A. Chaehoi , M. Begbie , D. Cornez , K. Kirk

In this paper, we investigate a novel form of approximate orthogonality that is based on integral orthogonality. Additionally, we establish the fundamental properties of this new approximate orthogonality and examine its capability to…

Functional Analysis · Mathematics 2024-03-19 Ranran Wang , Qi Liu , Jinyu Xia , Yongmo Hu

Strong light interaction with a subwavelength object has been a long pursuing goal with difficulties mainly arising from the diffraction limit. We propose a high finesse cavity with one mirror made of a subwavelength resonant particle as a…

Optics · Physics 2021-04-26 Z. Xi , H. P. Urbach

The chapter contains a detailed presentation of the surface integral theory for modelling light diffraction by surface-relief diffraction gratings having a one-dimensional periodicity. Several different approaches are presented, leading…

Optics · Physics 2014-06-03 Daniel Maystre , Evgeny Popov

Equifacetal simplices, all of whose codimension one faces are congruent to one another, are studied. It is shown that the isometry group of such a simplex acts transitively on its set of vertices, and, as an application, equifacetal…

Metric Geometry · Mathematics 2007-05-23 Allan L. Edmonds

A new optical design concept of telescopes to provide an aberration-free, wide field, unvignetted flat focal plane is described. The system employs three aspheric mirrors to remove aberrations, and provides a semi-circular field of view…

Astrophysics · Physics 2015-06-24 Kyoji Nariai , Masanori Iye

Coupling an emitter to a Fabry-P\'{e}rot optical cavity can provide a coherent and strong light-matter interface whose performance in a variety of applications depends critically on the emitter-photon coupling strength. Altering the…

Optics · Physics 2026-01-21 William J. Hughes , Peter Horak

We survey a variety of results about partially isometric matrices. We focus primarily on results that are distinctly finite-dimensional. For example, we cover a recent solution to the similarity problem for partial isometries. We also…

Functional Analysis · Mathematics 2019-03-29 Stephan Ramon Garcia , Matthew Okubo Patterson , William T. Ross

The concept of balancedly splittable orthogonal designs is introduced along with a recursive construction. As an application, equiangular tight frames over the real, complex, and quaternions meeting the Delsarte-Goethals-Seidel upper bound…

Combinatorics · Mathematics 2023-12-06 Hadi Kharaghani , Thomas Pender , Sho Suda