نتایج جستجو برای: interferometer

تعداد نتایج: 9645  

2009
D. BUSCHER C. HANIFF

Many astronomical objects are expected to be strongly polarized on the angular scales accessible with optical and infrared interferometry. Passage of stellar light through the optical trains of a long-baseline interferometer can induce cross talk between the polarized and unpolarized components of the light. As a result, the calibrated interferometric visibilities may depend on a difficult-to-s...

Journal: :Applied optics 2007
D Mozurkewich S R Restaino J T Armstrong G C Gilbreath

The optical interferometry community has discussed the possibility of using adaptive optics (AO) on apertures much larger than the atmospheric coherence length in order to increase the sensitivity of an interferometer, although few quantitative models have been investigated. The aim of this paper is to develop an analytic model of an AO-equipped interferometer and to use it to quantify, in rela...

Journal: :Applied optics 1993
S C Tidwell G H Kim W D Kimura

Conversion of a linearly polarized CO(2) laser beam into a radially polarized beam is demonstrated with a novel double-interferometer system. The first Mach-Zehnder interferometer converts the linearly polarized input beam into two beams with sin(2) θ and cos(2) θ intensity profiles, where θ is the azimuthal angle. This is accomplished by using two spiral-phase-delay plates with opposite handed...

2013
Richard C. G. Smith John Marciante

Optical interferometry has been used for over a century for precision metrology. Advances in interferometry, such as the inclusion of a laser source, have increased the precision of such interferometers. In this thesis, we examine a fiber-fed, heterodyne, spatially separated, differential wavefront interferometer. The combination of technology in this interferometer can allow easier and more ro...

2008
Fumiko Kawazoe Akio Sugamoto Volker Leonhardt Shuichi Sato Toshitaka Yamazaki Mitsuhiro Fukushima Seiji Kawamura Osamu Miyakawa Kentaro Somiya Tomoko Morioka Atsushi Nishizawa

Some next-generation gravitational-wave detectors, such as the American Advanced LIGO project and the Japanese LCGT project, plan to use power recycled resonant sideband extraction (RSE) interferometers for their interferometer’s optical configuration. A power recycled zero-detuning (PRZD) RSE interferometer, which is the default design for LCGT, has five main length degrees of freedom that nee...

2012
M. Brünger M. Kock

In collison dominated plasmas the electron density is the most important parameter. Therefore laser interferometry is very attractive because it allows a direct determination of this quantity without any rigid assumptions such as, e.g., local thermodynamical equilibrium (LTE). For references see, e.g., Griem \ Alpher and White 2 or Kunze 3. In the experiment described in this paper we intended ...

Journal: :Physical review letters 2015
Shi-Biao Zheng You-Peng Zhong Kai Xu Qi-Jue Wang H Wang Li-Tuo Shen Chui-Ping Yang John M Martinis A N Cleland Si-Yuan Han

A quantum system can behave as a wave or as a particle, depending on the experimental arrangement. When, for example, measuring a photon using a Mach-Zehnder interferometer, the photon acts as a wave if the second beam splitter is inserted, but as a particle if this beam splitter is omitted. The decision of whether or not to insert this beam splitter can be made after the photon has entered the...

2000
S. K. Saha S. Morel

This article is a sort of sequel of the earlier extensive review by Saha (1999a) where emphasis was laid down on the ground based single aperture, as well as on the working long baseline optical interferometers (LBI) situated at the various observatories across the globe that are producing a large amount of astronomical results. Since the future of high resolution astronomy lies with the new ge...

Journal: :Physical Review A 2022

We consider a subgroup of unitary transformations on mode light induced by Mach-Zehnder Interferometer and an algebra observables describing photon-number detector preceded the interferometer. explore uncertainty principles between such their usefulness in performing Bell-like experiment to show violation Clauser-Horne-Shimony-Holt (CHSH) inequality under physical assumption that distinguishes ...

2006
Jaiseung Kim

The sensitivity of interferometers with linear polarizers to the CMB E and B mode are variant under the rotation of the polarizer frame, while interferometer with circular polarizers are equally sensitive to E and B mode. We present analytically and numerically that the diagonal elements of window functions for CMB E/B power spectra are maximized in interferometric measurement of linear polariz...

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