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As light propagates along a waveguide, a fraction of the field can be reflected by Rayleigh scatterers. In high-quality-factor whispering-gallery-mode microresonators, this intrinsic backscattering is primarily caused by either surface or…

A century ago, J. J. Thomson showed that the scattering of low-intensity light by electrons was a linear process (i.e., the scattered light frequency was identical to that of the incident light) and that light's magnetic field played no…

Optics · Physics 2009-10-31 Szu-yuan Chen , Anatoly Maksimchuk , Donald Umstadter

We assess the impact of radiation anisotropy on the line shapes that result from relativistic magnetic Compton scattering in the low-density/high-field regime. A Monte Carlo implementation of radiation transport allows for spatial diffusion…

Astrophysics · Physics 2009-10-31 Rafael A. Araya-Gochez , Alice K. Harding

We investigate thermal synchrotron radiation at semi-relativistic and relativistic temperatures. We find an analytic expression for the angle-averaged emission coefficient, and show that it is significantly more accurate that those derived…

Astrophysics · Physics 2009-10-31 Grzegorz Wardzinski , Andrzej A. Zdziarski

Synchrotron radiation losses are a significant cause of concern for high-temperature aneutronic fusion reactions such as proton-Boron 11. The fact that radiation losses occur primarily in the high-energy tail, where the radiation itself has…

Plasma Physics · Physics 2024-07-16 Ian E. Ochs , Mikhail E. Mlodik , Nathaniel J. Fisch

Within the framework of a Hilbert space theory, we develop a maximum-``power'' variational principle (MPVP) applicable to classical spontaneous electromagnetic radiation from relativistic electron beams or other prescribed classical current…

Classical Physics · Physics 2020-06-23 A. E. Charman , J. S. Wurtele , G. Penn

We present comprehensive optical studies of recently discovered single photon sources in boron nitride, which appear in form of narrow lines emitting centres. Here, we aim to compactly characterise their basic optical properties, including…

Mesoscale and Nanoscale Physics · Physics 2018-01-17 Maciej Koperski , Karol Nogajewski , Marek Potemski

Motivated by the emittance requirements for future light sources, we show how longitudinal-transverse correlations can be introduced to create beams with large emittance asymmetry. This concept generalizes a key aspect of a Flat Beam…

Accelerator Physics · Physics 2010-10-26 Nikolai Yampolsky , Bruce Carlsten , Robert Ryne , Kip Bishofberger , Steven Russell , Alex Dragt

We calculate synchrotron radiation in three-dimensional pseudo-Newtonian magnetohydrodynamic simulations of radiatively inefficient accretion flows. We show that the emission is highly variable at optically thin frequencies, with order of…

Astrophysics · Physics 2009-11-10 Joshua E. Goldston , Eliot Quataert , Igor V. Igumenshchev

Future ultra-low emittance rings for electron/positron colliders require extremely high beam brightness and can thus be limited by collective effects. In this paper, the interplay of effects such as synchrotron radiation, intra-beam…

The spectrum and polarization produced by particles spiraling in a magnetic field undergo dramatic changes as the emitters transition from nonrelativistic to relativistic energies. However, none of the currently available methods for…

Astrophysics · Physics 2016-08-30 Brandon Wolfe , Fulvio Melia

The presence of a scattering medium in the imaging path between an object and an observer is known to severely limit the visual acuity of the imaging system. We present an approach to circumvent the deleterious effects of scattering, by…

We investigate influence on the storage ring beam dynamics of the coherent Synchrotron Radiation (SR) self fields produced by an electron bunch. We show that the maximum energy gain in the RF cavity must far exceed the energy loss of…

Accelerator Physics · Physics 2007-05-23 E. G. Bessonov , R. M. Feshchenko , V. I. Shvedunov

Double-slit diffraction studies with photons or massive particles rank among the most beautiful experiments in physics. In particular, measurements at very low intensities demonstrate the particle-wave duality and the coherent superposition…

Synchrotron radiation facilities provide highly polarized X-ray beams across a wide energy range. However, the exact type and degree of polarization varies according to the beamline and experimental setup. To accurately determine the angle…

Instrumentation and Detectors · Physics 2024-05-31 L. Manzanillas , J. M. Ablett , M. Choukroun , F. J. Iguaz , J. P. Rueff

Synchrotron circular polarization of a non-thermal power-law electron distribution in gamma-ray bursts (GRBs) has been studied. However, some numerical simulations have shown that the resulting distribution of electrons is a combination of…

High Energy Astrophysical Phenomena · Physics 2025-05-29 Kangfa Cheng , Jirong Mao , Xiaohong Zhao , Hongbang Liu , Zhegeng Chen , Gaojin Yu , Zhifu Chen

An analytical approach describing properties of focused partially coherent X-ray beams is presented. The method is based on the results of statistical optics and gives both the beam size and transverse coherence length at any distance…

Optics · Physics 2014-11-06 A. Singer , I. A. Vartanyants

Polarized electron beams are now in routine use in particle accelerators for nuclear and high energy physics experiments. These beams are presently produced by dc-biased photoelectron sources combined with rf chopping and bunching systems…

Accelerator Physics · Physics 2007-05-23 J. E. Clendenin , R. E. Kirby , D. Yu , D. Newsham

We have investigated the effects of resonant scattering of emission lines on the image morphology and intensity from coronal loop structures. It has previously been shown that line of sight effects in optically thin line emission can yield…

Astrophysics · Physics 2009-10-31 Kenneth Wood , John Raymond

We consider a further extension of our previous works in the treatment of the three-dimensional general relativistic Poynting-Robertson effect, which describes the motion of a test particle around a compact object as affected by the…

General Relativity and Quantum Cosmology · Physics 2021-05-12 Vittorio De Falco , Maciek Wielgus
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