نتایج جستجو برای: mirrors

تعداد نتایج: 7779  

Journal: :Classical and Quantum Gravity 2021

Moving mirrors have been known as tractable setups modeling Hawking radiation from black holes. In this paper, motivated by recent developments regarding the hole information problem, we present extensive studies of moving in conformal field theories employing both theoretic well holographic methods. Reviewing first usual formulation mirrors, construct their gravity dual resorting to AdS/BCFT c...

2011

Detecting gases at low concentrations with FT-IR requires long pathlengths to increase absorption. The conventional approach employs a multi-pass White Cell where the light beam is reflected between two mirrors that are angled so that the beam emerges past one of the mirrors after a number of reflections, giving pathlengths up to tens of meters. In cavity-enhanced measurements, a highly collima...

Journal: :Nature Photonics 2007

Journal: :Communications in Mathematical Physics 2007

Journal: :Applied optics 1993
G Duplain P G Verly J A Dobrowolski A Waldorf S Bussiére

Several types of small-dimension graded-reflectance mirrors deposited through rotating masks are compared. Multilayer mirrors provided with single-variable-thickness layers have limitations that are avoided when all the layers in the system are shaped. High-reflectance mirrors of the latter type are demonstrated. Numerical and experimental results are given.

1998
A.

I n this paper, we propose the use of mirrors and a single camera for computational stereo. W h e n compared to conventional stereo systems that use two cameras, our method has a number of significant advantages such as wide field of view, single viewpoint projection, identical camera parameters and ease of calibration. W e propose four stereo systems that use a single camera pointed towards pl...

The present article is concerned with an analytical solution for some parts of rare earth doped fiber laser equations. The presented model is valid for both four and three-level fiber lasers consisting high reflectivity mirrors. A typical method to obtain initial value in the numerical solutions of fiber laser equations is shooting method, which is based on an iteration process. Whereas this st...

2005
Yuichiro KOJIMA Ryusuke SAGAWA Tomio ECHIGO Yasushi YAGI

We have proposed a correspondenceless stereo system that consists of a single camera with multiple omnidirectional mirrors, which can detect approaching close objects without finding correspondences along epipolar lines. The system offers omnidirectional observation, portability, and real-time detection of near objects. The detection method requires for creating a model of the shape and locatio...

Journal: :Optics express 2018
João P Moura Richard A Norte Jingkun Guo Clemens Schäfermeier Simon Gröblacher

Demand for lightweight, highly reflective and mechanically compliant mirrors for optics experiments has seen a significant surge. In this aspect, photonic crystal (PhC) membranes are ideal alternatives to conventional mirrors, as they provide high reflectivity with only a single suspended layer of patterned dielectric material. However, due to limitations in nanofabrication, these devices are u...

2017
Yuya ABE Katsunori OKAJIMA Shunsuke Iida Roger Martin Yuichi Ikeda Tatsunori Mori Tomohiro OMATA Tatsunori MORI

Yuya ABE Katsunori OKAJIMA Study on installation requirements about display on electronic in-car mirror and improvement of depth feel. In recent years, electronic in-car mirrors are paid attention to by automobile industry. It has a lot of benefit in safety, but on the other hand it has some problems. This study aims to clarify visibility of display on electronic rear-view mirrors and to improv...

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