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Related papers: Twisted polarization domains and their dynamics

200 papers

The polarization of a coherent depolarized incident light beam passing through a disordered medium is investigated. The local polarization of the scattered far field and the probability density function are calculated and show an excellent…

Optics · Physics 2011-06-06 Jacques Sorrentini , Myriam Zerrad , Gabriel Soriano , Claude Amra

The connection between Poincar\'e spheres for polariz-ation and Gaussian beams is explored, focusing on the interpretation of elliptic polarization in terms of the isotropic 2-dimensional harmonic oscillator in Hamiltonian mechanics, its…

Optics · Physics 2017-01-10 Mark R Dennis , Miguel A Alonso

The Poincar\'e sphere is a graphical representation in a three-dimensional space for the polarization of light. Similarly, an optical element with spatially varying birefringence can be represented by a surface on a four-dimensional…

Optics · Physics 2018-02-14 Anthony Vella , Miguel A. Alonso

Massive star binaries are critical laboratories for measuring masses and stellar wind mass-loss rates. A major challenge is inferring viewing inclination and extracting information about the colliding wind interaction (CWI) region.…

Solar and Stellar Astrophysics · Physics 2022-07-06 Richard Ignace , Andrew Fullard , Manisha Shrestha , Yael Naze , Kenneth Gayley , Jennifer L Hoffman , Jamie R Lomax , Nicole St-Louis

We briefly review the foundations of a new relativistic fluid dynamics framework for polarized systems of particles with spin one half. Using this approach we numerically study the dynamics of the spin polarization of a rotating medium…

We report for the first time the theory of optical tweezers of spherical dielectric particles embedded in a chiral medium. We develop a partial-wave (Mie) expansion to calculate the optical force acting on a dielectric microsphere…

Optics · Physics 2020-09-28 Rfaqat Ali , R. S. Dutra , F. A. Pinheiro , F. S. S. Rosa , P. A. Maia Neto

Due to the continuous developments in polarimetric instrumentation, which will become even more dramatic in the near future with the availability of new generation solar telescopes, we are now severely confronted with a variety of new…

Solar and Stellar Astrophysics · Physics 2011-03-29 Luca Belluzzi

We introduce and produce experimentally optical beams exhibiting periodic skyrmionic polarization lattices at each transverse plane of propagation. These textures are meron lattices formed by tiles mapping hemispheres of the Poincar\'e…

Optics · Physics 2024-02-14 David Marco , Isael Herrera , Sophie Brasselet , Miguel A. Alonso

Tightly focused light beams can exhibit electric fields spinning around any axis including the one transverse to the beams' propagation direction. At certain focal positions, the corresponding local polarization ellipse can degenerate into…

Optics · Physics 2016-07-01 Thomas Bauer , Martin Neugebauer , Gerd Leuchs , Peter Banzer

We provide a vivid demonstration of the mechanical effect of transverse spin momentum in an optical beam in free space. This component of the Poynting momentum was previously thought to be virtual, and unmeasurable. Here, its effect is…

Optics · Physics 2018-06-29 V. Svak , O. Brobohaty , M. Siler , P. Jakl , J. Kanka , P. Zemanek , S. H. Simpson

Non-equilibrium quantum rings emit circular polarized subterahertz radiation with a polarization degree controllable on nano- to picosecond time scales. This we conclude using a theory developed here for the time-dependent detection of the…

Quantum Physics · Physics 2009-11-13 A. S. Moskalenko , J. Berakdar

We present a description of the evolution of a polarized Gaussian beam in a smoothly inhomogeneous isotropic medium in frame of the eikonal-based complex geometrical optics which describes the phase front and the cross section of the…

Optics · Physics 2015-06-04 Hehe Li , Peiyong Ji

A novel polarimeter based on the asymmetry in the spacial distribution of synchrotron radiation will make for a fine addition to the existing M{\o}ller and Compton polarimeters. The spin light polarimeter consists of a set of wiggler magnet…

Accelerator Physics · Physics 2014-03-21 Prajwal Mohanmurthy , Dipangkar Dutta

In a recent work [20], we predicted and experimentally validated a new physical mechanism for altering the propagation path of a monochromatic beam. Specifically, we showed that by properly tailoring the spatial distribution of the linear…

Optics · Physics 2023-05-24 J. M. Nichols , D. V. Nickel , G. K. Rohde , F. Bucholtz

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

The rotation of polarization occurs for light interacting with chiral materials. It requires the light states with opposite chiralities interact differently with the materials. We demonstrate analogous rotation of polarization also exists…

High Energy Physics - Phenomenology · Physics 2021-06-03 Defu Hou , Shu Lin

We have experimentally and theoretically shown that the circularly polarized beam bearing singly charged optical vortex propagating through a uniaxial crystal can be split after focusing into the radially and azimuthally polarized beams in…

We investigate theoretically the polarization properties of the quantum dot's optical emission from chiral photonic crystal structures made of achiral materials in the absence of external magnetic field at room temperature. The mirror…

When light is passing through a rotating medium the optical polarisation is rotated. Recently it has been reasoned that this rotation applies also to the transmitted image (Padgett et al. 2006). We examine these two phenomena by extending…

Optics · Physics 2009-11-13 J. B. Goette , S. M. Barnett , M. Padgett

Dynamics of wavepackets in fractional Schrodinger equation is still an open problem. The difficulty stems from the fact that the fractional Laplacian derivative is essentially a nonlocal operator. We investigate analytically and…

Optics · Physics 2015-10-29 Yiqi Zhang , Xing Liu , Milivoj R. Belić , Weiping Zhong , Yanpeng Zhang , Min Xiao