Results 41 to 50 of about 17,725 (236)

High speed partial Stokes imaging using a ferroelectric liquid crystal modulator [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
This paper describes the implementation of an imaging polarimeter using a single ferroelectric liquid crystal light modulator. It provides partial imaging Stokes information at 234 Hz, much faster than polarimeters using nematic light modulators.
Jaulin Albéric, Bigué Laurent
doaj   +1 more source

Fast and optimal broad-band Stokes/Mueller polarimeter design by the use of a genetic algorithm

, 2010
A fast multichannel Stokes/Mueller polarimeter with no mechanically moving parts has been designed to have close to optimal performance from 430-2000 nm by applying a genetic algorithm.
Azzam, Azzam, Bueno, Compain, Cormier, Fernandes, Foldyna, Gandorfer, Garcia-Caurel, Germer, Germer, Holland, Ingar Stian Nerbø, Jin, Kudla, Ladstein, Lars Martin S. Aas, Morten Kildemo, Nerbø, Paul Anton Letnes, Pål Gunnar Ellingsen, Sabatke, Stabo-Eeg, Stabo-Eeg, Tyo, Weinreb   +25 more
core   +1 more source

Fundamental precision limits of full Stokes polarimeters based on DoFP polarization cameras for an arbitrary number of acquisitions.

Optics Express, 2019
As an emerging technology, division-of-focal-plane (DoFP) polarization cameras have raised attention due to their integrated structure. In this paper, we address the fundamental precision limits of full Stokes polarimeters based on a linear DoFP ...
Xiaobo Li, Haofeng Hu, F. Goudail, Tiegen Liu   +3 more
semanticscholar   +1 more source

Unique electron polarimeter analyzing power comparison and precision spin-based energy measurement

Physical Review Special Topics. Accelerators and Beams, 2004
Precision measurements of the relative analyzing powers of five electron beam polarimeters, based on Compton, Møller, and Mott scattering, have been performed using the CEBAF accelerator at the Thomas Jefferson National Accelerator Facility (Jefferson ...
J. M. Grames, C. K. Sinclair, J. Mitchell, E. Chudakov, H. Fenker, A. Freyberger, D. W. Higinbotham, M. Poelker, M. Steigerwald, M. Tiefenback, C. Cavata, S. Escoffier, F. Marie, T. Pussieux, P. Vernin, S. Danagoulian, V. Dharmawardane, R. Fatemi, K. Joo, M. Zeier, V. Gorbenko, R. Nasseripour, B. Raue, R. Suleiman, B. Zihlmann   +24 more
doaj   +1 more source

Magnetic Field Structure in Relativistic Jets

EPJ Web of Conferences, 2013
Relativistic jets are ubiquitous when considering an accreting black hole. Two of the most extreme examples of these systems are blazars and gamma-ray bursts (GRBs), the jets of which are thought to be threaded with a magnetic field of unknown structure.
Jermak Helen, Mundell Carole, Steele Iain, Harrison Richard, Kobayashi Shiho, Lindfors Elina, Nilsson Kari, Barres de Almeida Ulisses   +7 more
doaj   +1 more source

Towards perfectly linearly polarized x-rays

Physical Review Research, 2022
In recent years, high-precision x-ray polarimeters have become a key method for the investigation of fundamental physical questions from solid-state physics to quantum optics.
Kai S. Schulze, Benjamin Grabiger, Robert Loetzsch, Berit Marx-Glowna, Annika T. Schmitt, Alejandro Laso Garcia, Willi Hippler, Lingen Huang, Felix Karbstein, Zuzana Konôpková, Hans-Peter Schlenvoigt, Jan-Patrick Schwinkendorf, Cornelius Strohm, Toma Toncian, Ingo Uschmann, Hans-Christian Wille, Ulf Zastrau, Ralf Röhlsberger, Thomas Stöhlker, Thomas E. Cowan, Gerhard G. Paulus   +20 more
doaj   +1 more source

A Calibration System for Compton Polarimetry at $e^+e^-$ Linear Colliders

, 2015
Polarimetry with permille-level precision is essential for future electron-positron linear colliders. Compton polarimeters can reach negligible statistical uncertainties within seconds of measurement time.
List, Jenny, Vauth, Annika, Vormwald, Benedikt   +2 more
core   +1 more source

The Galway astronomical Stokes polarimeter: optical development

EPJ Web of Conferences, 2010
The acquisition time of astronomical polarimeters has in the past been restricted to by the use of polarimeters utilizing modulated or rotating components [1].
Sheehan B., Shearer A., Redfern M., Collins P.   +3 more
doaj   +1 more source

Astronomical Polarimetry with the RIT Polarization Imaging Camera

, 2018
In the last decade, imaging polarimeters based on micropolarizer arrays have been developed for use in terrestrial remote sensing and metrology applications.
Brock, Neal, Ninkov, Zoran, Vorobiev, Dmitry   +2 more
core   +1 more source

Reflection nebulae in the Galactic Center: the case for soft X-ray imaging polarimetry [PDF]

, 2015
The origin of irradiation and fluorescence of the 6.4 keV bright giant molecular clouds surrounding Sgr A*, the central supermassive black hole of our Galaxy, remains enigmatic.
Karas, V., Kunneriath, D., Marin, F., Muleri, F., Soffitta, P.   +4 more
core   +2 more sources