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This study describes both experimentally and theoretically an important hitherto undiscovered feature of the scattering of micron_sized spherical objects when illuminated with highly focused circularly polarized light. This is a regime of…

Electromagnetic scattering from moving bodies, being inherently time-dependent phenomenon, gives rise to a generation of new frequencies, which could characterize the motion. While a standard linear path leads to a constant Doppler shift,…

Classical Physics · Physics 2017-06-28 Dmitry Filonov , Ben Z. Steinberg , Pavel Ginzburg

Spin-controlled lasers are highly interesting photonic devices and have been shown to provide ultra-fast polarization dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers their temporal properties are not limited…

The rise of interest in the study of quantum emitters has recently prompted many research groups to construct their own confocal epifluorescence microscopy/spectroscopy instruments. The low light levels typically involved in quantum emitter…

Optics · Physics 2022-06-23 K. G. Scheuer , G. J. Hornig , T. R. Harrison , R. G. DeCorby

Recent progress in nanoscale optical physics is associated with the development of a new branch of nanophotonics exploring strong Mie resonances in dielectric nanoparticles with high refractive index. The high-index resonant dielectric…

In lima\c{c}on-shaped gradient index dielectric cavities designed by conformal transformation optics, the variation of Q-factors and emission directionality of resonant modes was traced in their system parameter space. For these cavities,…

Optics · Physics 2019-06-13 Jung-Wan Ryu , Jinhang Cho , Inbo Kim , Muhan Choi

We report the design and construction of a novel soft x-ray diffractometer installed at Diamond Light Source. The beamline endstation RASOR is constructed for general users and designed primarily for the study of single crystal diffraction…

Strongly Correlated Electrons · Physics 2014-11-21 T. A. W. Beale , T. P. A. Hase , T. Iida , K. Endo , P. Steadman , A. R. Marshall , S. S. Dhesi , G. van der Laan , P. D. Hatton

Sorting quantum fields into different modes according to their Fock-space quantum numbers is a highly desirable quantum operation. In this Letter, we show that a pair of two-level emitters, chirally coupled to a waveguide, may scatter…

Quantum Physics · Physics 2022-05-25 Fan Yang , Mads M. Lund , Thomas Pohl , Peter Lodahl , Klaus Mølmer

In the present article the classical problem of electromagnetic scattering by a single homogeneous sphere is revisited. Main focus is the study of the scattering behavior as a function of the material contrast and the size parameters for…

Classical Physics · Physics 2017-06-28 Dimitrios C. Tzarouchis , Pasi Ylä-Oijala , Ari Sihvola

We analyse the resonance conditions of a long and narrow ribbon of finite length whether it is conductive or dielectric. This is accomplished by using a full wave approach based on the material independent modes that naturally discriminates…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Carlo Forestiere , Giovanni Miano , Mariano Pascale , Roberto Tricarico

Strongly magnetic, rapidly rotating B-type stars with relatively weak winds form centrifugal magnetospheres (CMs), as the stellar wind becomes magnetically confined above the Kepler co-rotation radius. Approximating the magnetic field as a…

Solar and Stellar Astrophysics · Physics 2022-02-16 I. D. Berry , S. P. Owocki , M. E. Shultz , A. ud-Doula

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

The objective of the paper is the assessment of the accuracy of a conventional FDTD code in the computation of the near and far-field scattering characteristics of a circular dielectric cylinder. We excite the cylinder with an electric or…

Optics · Physics 2015-05-18 A. V. Boriskin , S. V. Boriskina , A. Rolland , R. Sauleau , A. I. Nosich

The angular distribution of low-frequency radiation after single scattering by an isotropic distribution of relativistic electrons considerably differs from the Rayleigh angular function. In particular, the scattering by an ensemble of…

Astrophysics · Physics 2009-10-31 Sergei Y. Sazonov , Rashid A. Sunyaev

On-chip optical waveguides with low propagation losses and precisely engineered group velocity dispersion (GVD) are important to nonlinear photonic devices such as soliton microcombs. Yet, despite intensive research efforts, nonlinear…

The coherence properties of mechanical resonators are often limited by multiple unavoidable forms of loss -- including phonon-phonon and phonon-defect scattering -- which result in the scattering of sound into other resonant modes and into…

Quantum Physics · Physics 2016-12-30 Xunnong Xu , Seunghwi Kim , Gaurav Bahl , Jacob M. Taylor

Two microring resonators, one with gain and one with loss, coupled to each other and to a bus waveguide, create an effective non-Hermitian potential for light propagating in the waveguide. Due to geometry, coupling for each microring…

Optics · Physics 2019-04-10 Vladimir V. Konotop , Barry C. Sanders , Dmitry A. Zezyulin

The development of ultrahigh quality factor (Q) microresonators has been driving such technologies as cavity quantum electrodynamics (QED), high-precision sensing, optomechanics, and optical frequency comb generation. Here we report…

Applied Physics · Physics 2020-09-08 Shun Fujii , Yuka Hayama , Kosuke Imamura , Hajime Kumazaki , Yasuhiro Kakinuma , Takasumi Tanabe

In a preceding paper we introduced a formalism to study the scattering of low intensity fields from a system of multi-level emitters embedded in a $3$D dielectric medium. Here we show how this photon-scattering relation can be used to…

Quantum Physics · Physics 2018-04-25 Sumanta Das , Vincent E. Elfving , Florentin Reiter , Anders S. Sørensen

The spectrum of electromagnetic emission generated by relativistic electrons scattered on small-scale random magnetic fields, implied by current models of the magnetic field generation in the gamma-ray burst sources, is considered. The…

Astrophysics · Physics 2009-11-10 Gregory D. Fleishman
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