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相关论文: Polarization squeezing in vertical-cavity surface-…

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Inspired by recent use of polarimetry to study the Cosmic Microwave Background and extragalatic supernovae, a foray into the statistical properties of Stokes parameters expressed in spherical coordinates is began, allowing circular…

天体物理仪器与方法 · 物理学 2014-11-19 Jason L. Quinn

We investigate theoretically the quantum fluctuations of the fundamental field in the output of a nondegenerate second harmonic generation process occuring inside a laser cavity. Due to the nondegenerate character of the nonlinear medium, a…

量子物理 · 物理学 2009-11-10 Ulrik L. Andersen , Peter Tidemand-Lichtenberg , Preben Buchhave

We consider sub-Poissonian single-mode laser with external synchronization and analyze its applicability to the problems of quantum information. Using Heisenberg-Langevin theory we calculate the quadrature variances of the field emitted by…

量子物理 · 物理学 2009-11-13 T. Golubeva , D. Ivanov , Yu. Golubev

We comprehensively review the quantum theory of the polarization properties of light. In classical optics, these traits are characterized by the Stokes parameters, which can be geometrically interpreted using the Poincar\'e sphere.…

We study polarization squeezing of a pure photon number state which is obviously polarized but the mere change in the basis of polarization leads to simultaneous polarization squeezing in all the components of Stokes operator vector except…

量子物理 · 物理学 2016-10-21 Namrata Shukla , Ranjana Prakash

A simple, self-calibrating, rotating-waveplate polarimeter is largely insensitive to light intensity fluctuations and is shown to be useful for determining the Stokes parameters of light. This study shows how to minimize the in situ…

光学 · 物理学 2021-11-16 Vitaly Wirthl , Cristian D. Panda , Paul W. Hess , Gerald Gabrielse

We discuss different proposals for the degree of polarization of quantum fields. The simplest approach, namely making a direct analogy with the classical description via the Stokes operators, is known to produce unsatisfactory results.…

量子物理 · 物理学 2010-09-23 G. Bjork , J. Soderholm , L. L. Sanchez-Soto , A. B. Klimov , I. Ghiu , P. Marian , T. A. Marian

Linearly polarized emission is described, in general, in terms of the Stokes parameters $Q$ and $U$, from which the polarization intensity and polarization angle can be determined. Although the polarization intensity and polarization angle…

星系天体物理 · 物理学 2018-01-31 C. A. Herron , B. M. Gaensler , G. F. Lewis , N. M. McClure-Griffiths

Nonlinear QED interactions induce different polarization properties on a given probe beam. We consider the polarization effects caused by the photon-photon interaction in laser experiments, when a laser beam propagates through a constant…

高能物理 - 唯象学 · 物理学 2017-04-03 Soroush Shakeri , Seyed Zafarollah Kalantari , She-Sheng Xue

For highly divergent emission of broad-area vertical-cavity surface-emitting lasers (VCSELs) a rotation of the polarization direction by up to 90 degrees occurs when the pump rate approaches the lasing threshold. Well below threshold the…

斑图形成与孤子 · 物理学 2013-05-29 M. Schulz-Ruhtenberg , I. V. Babushkin , N. A. Loiko , K. F. Huang , T. Ackemann

Experiments and their interpretation on polarization dynamics and polarization switching in vertical-cavity surface-emitting lasers operated in the fundamental transverse mode regime are reviewed. Important observations are switching events…

光学 · 物理学 2025-07-14 Thorsten Ackemann , Markus Sondermann

We report on the generation of polarization squeezing of intense, short light pulses using an asymmetric fiber Sagnac interferometer. The Kerr nonlinearity of the fiber is exploited to produce independent amplitude squeezed pulses. The…

量子物理 · 物理学 2016-08-16 J. Heersink , T. Gaber , S. Lorenz , O. Glöckl , N. Korolkova , G. Leuchs

We present a simple but powerful technique for the analysis of polarized emission from radio galaxies and other objects. It is based on the fact that images of Stokes parameters often contain considerably more information than is available…

星系天体物理 · 物理学 2021-11-10 Lawrence Rudnick , Debora Katz , Lerato Sebokolodi

We report on nonlinear squeezing effects of polarization states of light by harnessing the intrinsic correlations from a polarization-entangled light source and click-counting measurements. Nonlinear Stokes operators are obtained from…

量子物理 · 物理学 2022-12-26 Nidhin Prasannan , Jan Sperling , Benjamin Brecht , Christine Silberhorn

A rate equation model describing the laser dynamics of general one or two dimensional vertical cavity surface emitting laser (vcsel) arrays is introduced. It is shown that the theory includes both the previous theory for edge emitting…

光学 · 物理学 2009-10-30 Holger F. Hofmann , Ortwin Hess

Polarization speckle is a fine granular light pattern having spatially varying random polarization profile. We generate these speckle patterns by using the scattering of Poincar\'e beams, a special class of vector vortex beams, through a…

光学 · 物理学 2017-05-15 Salla Gangi Reddy , Vijay Kumar , Yoko Miyamoto , R. P. Singh

An approach for measuring linear X-ray polarization over a broad-band using conventional spectroscopic optics is described. A set of multilayer-coated flats reflect the dispersed X-rays to the instrument detectors. The intensity variation…

天体物理学 · 物理学 2009-11-13 Herman L. Marshall

The spontaneous emergence of vector vortex beams with non-uniform polarization distribution is reported in a vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback. Antivortices with a hyperbolic polarization…

光学 · 物理学 2017-09-20 Jesus Jimenez-Garcia , Pedro Rodriguez , T. Guillet , T. Ackemann

The properties of vector vortex beams in vertical-cavity-surface emitting lasers with frequency-selective feedback is investigated. They are interpreted as high-order vortex solitons with a spatially non-uniform, but locally linear…

斑图形成与孤子 · 物理学 2022-10-27 T. Ackemann , T. Guillet , H. Pulham , G. -L. Oppo

Semiconductor lasers are notoriously sensitive to optical feedback, and their dynamics and coherence can be significantly modified through optical reinjection. We concentrate on the dynamical properties of a very small (i.e., microscale)…