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High precision polarization measurements open new opportunities for the study of the magnetic field structure as traced by polarimetric measurements of the interstellar dust emission. Polarization parameters suffer from bias in the presence…

Astrophysics of Galaxies · Physics 2017-03-15 D. Alina , L. Montier , I. Ristorcelli , J. -P. Bernard , F. Levrier , E. Abdikamalov

Precise measurements of cosmic microwave background polarization require rigorous control of instrumental systematics. For the South Pole Telescope's third-generation camera (SPT-3G), accurate characterization of the beam is critical for…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-09 T. de Haan , M. Archipley , N. Huang , A. J. Anderson , B. Ansarinejad , L. Balkenhol , D. R. Barron , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , S. Bocquet , F. R. Bouchet , L. Bryant , E. Camphuis , M. G. Campitiello , J. E. Carlstrom , J. Carron , C. L. Chang , P. Chaubal , P. M. Chichura , A. Chokshi , T. -L. Chou , A. Coerver , T. M. Crawford , C. Daley , K. R. Dibert , M. A. Dobbs , M. Doohan , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , N. C. Ferree , K. Fichman , A. Foster , S. Galli , A. E. Gambrel , R. W. Gardner , F. Ge , N. Goeckner-Wald , R. Gualtieri , F. Guidi , S. Guns , N. W. Halverson , E. Hivon , A. Y. Q. Ho , G. P. Holder , W. L. Holzapfel , J. C. Hood , A. Hryciuk , F. Keruzore , A. R. Khalife , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , K. Levy , Y. Li , A. E. Lowitz , C. Lu , G. P. Lynch , T. J. Maccarone , A. S. Maniyar , E. S. Martsen , F. Menanteau , M. Millea , J. Montgomery , Y. Nakato , T. Natoli , G. I. Noble , Y. Omori , A. Ouellette , Z. Pan , P. Paschos , K. A. Phadke , A. W. Pollak , K. Prabhu , W. Quan , M. Rahimi , A. Rahlin , C. L. Reichardt , M. Rouble , J. E. Ruhl , E. Schiappucci , A. C. Silva Oliveira , A. Simpson , J. A. Sobrin , A. A. Stark , J. Stephen , C. Tandoi , B. Thorne , C. Trendafilova , C. Umilta , J. D. Vieira , A. G. Vieregg , A. Vitrier , Y. Wan , N. Whitehorn , W. L. K. Wu , M. R. Young , J. A. Zebrowski

The free electron laser (FEL), as a next-generation light source, is an attractive tool in scientific frontier research because of its advantages of full coherence, ultra-short pulse duration, and controllable polarization. Owing to the…

Instrumentation and Detectors · Physics 2017-10-25 Qingmin Zhang , Bangjie Deng , Yuanmiaoliang Chen , Bochao Liu , Shaofei Chen , Jinquan Fan , Lie Feng , Haixiao Deng , Bo Liu , Dong Wang

We present a Faraday rotation spectroscopy (FRS) technique for measurements on the micron scale. Spectral acquisition speeds of many orders of magnitude faster than state-of-the-art modulation spectroscopy setups are demonstrated. The…

A precise, accurate, and relatively straightforward in-situ method to measure and control the ellipticity of light resonantly interacting with an atomic vapor is described. The technique can be used to minimize vector light shifts. The…

Optics · Physics 2017-09-14 Derek F. Jackson Kimball , Jordan Dudley , Yan Li , Dilan Patel

An easily constructed and operated polarimeter precisely determines the relative Stokes parameters that characterize the polarization of laser light. The polarimeter is calibrated in situ without removing or realigning its optical elements,…

Instrumentation and Detectors · Physics 2021-02-22 V. Wirthl , C. D. Panda , P. W. Hess , B. Spaun , G. Gabrielse

We show that, under the right conditions, one can make highly accurate polarization-based measurements without knowing the absolute polarization state of the probing light field. It is shown that light, passed through a randomly varying…

We report on a novel and efficient source of polarization squeezing using a single pass through an optical fiber. Simply passing this Kerr squeezed beam through a carefully aligned lambda/2 waveplate and splitting it on a polarization beam…

Quantum Physics · Physics 2009-11-10 J. Heersink , V. Josse , G. Leuchs , U. L. Andersen

A fast and general Bayesian inference framework to infer the physical properties of dichroic polarization using mid-infrared imaging- and spectro-polarimetric observations is presented. The Bayesian approach is based on a hierarchical…

Instrumentation and Methods for Astrophysics · Physics 2015-12-02 E. Lopez-Rodriguez

A technique is described for the detection and measurement of close binary systems whose images are unresolved. The method is based on analysis of the moment of inertia tensor of the image, from which the product of the binary flux ratio…

Astrophysics · Physics 2009-10-30 Paul Hickson

Our goal is to test the feasibility to obtain accurate measurements of the continuum polarization from high-resolution spectra using the spectropolarimetric mode of ESPaDOnS. We used the new pipeline OPERA to reduce recent and archived…

Instrumentation and Methods for Astrophysics · Physics 2015-01-14 A. Pereyra , C. V. Rodrigues , E. Martioli

In this work, a novel highly fabrication tolerant polarization beam splitter (PBS) is presented on an InP platform. To achieve the splitting, we combine the Pockels effect and the plasma dispersion effect in a symmetric 1x2 Mach-Zehnder…

We study polarization dependent photon propagation in static, spherically symmetric spacetimes permeated by strong magnetic fields, with the aim of quantifying how finite emission and detection radii modify vacuum birefringence signals.…

General Relativity and Quantum Cosmology · Physics 2026-01-21 Ali Övgün , Reggie C. Pantig

In recent years, handheld and portable terahertz instruments have been in rapid development for various applications ranging from non-destructive testing to biomedical imaging and sensing. For instance, we have deployed our Portable…

Optics · Physics 2024-03-22 Zachery B. Harris , Kuangyi Xu , M. Hassan Arbab

We reveal a large spin angular splitting of light beam on reflection at the Brewster angle both theoretically and experimentally. A simple weak measurements system manifesting itself for the built-in post-selection technique is proposed to…

Optics · Physics 2015-06-05 Xinxing Zhou , Hailu Luo , Shuangchun Wen

Faraday tomography is a powerful method to diagnose polarizations and Faraday rotations along the line of sight. The quality of Faraday tomography is, however, limited by several conditions. Recently, it is reported that Faraday tomography…

Instrumentation and Methods for Astrophysics · Physics 2014-05-26 Kohei Kumazaki , Takuya Akahori , Shinsuke Ideguchi , Tomoharu Kurayama , Keitaro Takahashi

We report on the simultaneous observation of spontaneous symmetry breaking and long-range spatial coherence both in the strong and the weak-coupling regime in a semiconductor microcavity. Under pulsed excitation, the formation of a…

Mesoscale and Nanoscale Physics · Physics 2012-08-14 Hamid Ohadi , Elena Kammann , Timothy C. H. Liew , Konstantinos G. Lagoudakis , Alexey V. Kavokin , Pavlos G. Lagoudakis

The synchrotron radiation is commonly known to be completely linearly polarized when observed in the orbital plane of the synchrotron motion. Under actual experimental conditions, however, the degree of polarization of the synchrotron…

Atomic Physics · Physics 2018-11-09 A. Surzhykov , V. A. Yerokhin , S. Fritzsche , A. V. Volotka

Exploiting the azimuthal angle dependence of the density matrices we construct observables that directly measure the spin of a heavy unstable particle. A novelty of the approach is that the analysis of the azimuthal angle dependence in a…

High Energy Physics - Phenomenology · Physics 2009-07-22 Fawzi Boudjema , Ritesh K. Singh