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The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Special emphasis is laid on investigating the polarization of the…

Plasma Physics · Physics 2020-06-11 Ujjwal Sinha , Naveen Kumar

Since its first successful applications in the early 2000s, x-ray Thomson scattering (XRTS) has emerged as one of the most successful tools for the diagnostics of extreme states of matter in the laboratory. By sampling the dynamic structure…

Plasma Physics · Physics 2026-04-28 Tobias Dornheim , Hannah Bellenbaum , Thomas Gawne , Jan Vorberger , Dirk O. Gericke

We study the polarization properties of the prompt emission of gamma-ray bursts produced by fragmented fireballs. Such fireballs, known in the literature under various names, are made by the superposition of many individual blobs, each of…

High Energy Astrophysical Phenomena · Physics 2015-05-13 Davide Lazzati , Mitchell Begelman

We propose a collective Thomson scattering experiment at the VUV free electron laser facility at DESY (FLASH) which aims to diagnose warm dense matter at near-solid density. The plasma region of interest marks the transition from an ideal…

Plasma Physics · Physics 2015-06-26 A. Hoell

Understanding and interpretation of the dynamics of ultrarelativistic plasma is a challenge, which calls for the development of methods for \textit{in situ} probing the plasma dynamical characteristics. We put forward a new method,…

Plasma Physics · Physics 2022-05-03 Zheng Gong , Karen Z. Hatsagortsyan , Christoph H. Keitel

X-ray polarimetry promises to give qualitatively new information about high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, neutron stars, and gamma-ray bursts. We designed, built and…

Instrumentation and Methods for Astrophysics · Physics 2014-12-22 Matthias Beilicke , F. Kislat , A. Zajczyk , Q. Guo , R. Endsley , M. Stork , R. Cowsik , P. Dowkontt , S. Barthelmy , T. Hams , T. Okajima , M. Sasaki , B. Zeiger , G. De Geronimo , M. G. Baring , H. Krawczynski

When polarized light is absorbed by an atom, the excited atomic system carries information about the initial polarization of light. For the light that carries an orbital angular momentum, or the twisted light, the polarization states are…

Quantum Physics · Physics 2020-05-18 Andrei Afanasev , Carl E. Carlson , Hao Wang

We describe upgrades to a numerical code which computes synchrotron and inverse-Compton emission from relativistic plasma including full polarization. The introduced upgrades concern scattering kernel which is now capable of scattering the…

High Energy Astrophysical Phenomena · Physics 2022-11-16 M. Moscibrodzka

Incoherent Thomson scattering is a non-intrusive technique commonly used for measuring local plasma density. Within low-density, low-temperature plasma's and for sufficient laser intensity, the laser may perturb the local electron density…

Plasma Physics · Physics 2018-05-29 Andrew T. Powis , Mikhail N. Shneider

A possibility to measure the energy and polarization distributions of high intensity gamma-beams is considered. This possibility is based on measurements of the number of electron-pozitron pairs in such media as laser waves and single…

High Energy Physics - Experiment · Physics 2008-11-26 V. A. Maisheev

We consider deflection of polarizable molecules by inhomogeneous optical fields, and analyze the role of molecular orientation and rotation in the scattering process. It is shown that molecular rotation induces spectacular rainbow-like…

Quantum Physics · Physics 2015-05-19 E. Gershnabel , I. Sh. Averbukh

It is shown, by simulation and theory, that circularly or elliptically polarized terahertz radiation can be generated when a static magnetic (B) field is imposed on a gas target along the propagation direction of a two-color laser driver.…

Plasma Physics · Physics 2015-06-30 W. -M. Wang , P. Gibbon , Z. -M. Sheng , Y. -T. Li

We consider emission of a photon by an electron in the field of a strong laser wave. Polarization effects in this process are important for a number of physical problems. We discuss a probability of this process for circularly polarized…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Yu. Ivanov , G. L. Kotkin , V. G. Serbo

We investigate the phenomenology of nonlinear Compton scattering of polarised photons by unpolarised electrons in plane-wave backgrounds. The energy and angular spectra of polarised photons are calculated for linearly- and…

High Energy Physics - Phenomenology · Physics 2020-08-19 B. King , S. Tang

Based on single particle tracking in the framework of classical Thomson scattering with incoherent superposition, we developed a fully relativistic, three dimensional numerical code that calculates and quantifies the characteristics of…

Optics · Physics 2013-03-27 Isaac Ghbregziabher , Bradley Shadwick , Donald Umstadter

We review the polarization properties of X-ray emission from highly magnetized neutron stars, focusing on emission from the stellar surfaces. We discuss how x-ray polarization can be used to constrain neutron star magnetic field and…

High Energy Astrophysical Phenomena · Physics 2016-06-01 Dong Lai , Wynn C. G. Ho , Matthew van Adelsberg , Chen Wang , Jeremy S. Heyl

We show theoretically and demonstrate experimentally that highly absorbing particles can be trapped and manipulated in a single highly focused Gaussian beam. Our studies of the effects of polarized light on such particles show that they can…

X-ray polarimetry has great scientific potential and new experiments, such as X-Calibur, PoGOLite, XIPE, and GEMS, will not only be orders of magnitude more sensitive than previous missions, but also provide the capability to measure…

Instrumentation and Methods for Astrophysics · Physics 2015-03-03 Fabian Kislat , Matthias Beilicke , Qingzhen Guo , Anna Zajczyk , Henric Krawczynski

We compute rest-frame reflection spectra and the corresponding energy-dependent linear polarization degree and angle for (un)polarized single-temperature blackbody spectra impinging on a partially ionized constant-density optically thick…

High Energy Astrophysical Phenomena · Physics 2026-05-27 J. Podgorný , M. Dovčiak , R. Goosmann , F. Marin , L. Marra , G. Matt , A. Różańska , R. Taverna

We demonstrate optical control of the polarization eigenstates of a neutral quantum dot exciton without any external fields. By varying the excitation power of a circularly polarized laser in micro-photoluminescence experiments on…