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Light that carries linear or angular momentum can interact with a mechanical object giving rise to optomechanical effects. In particular, a photon transfers its intrinsic angular momentum to an object when the object either absorbs the…

The spin Hall effect of light, a spin-dependent transverse splitting of light at an optical interface, is intrinsically an incident-polarization-sensitive phenomenon. Recently, an approach to eliminate the polarization dependence by…

Optics · Physics 2021-09-10 Minkyung Kim , Dasol Lee , Junsuk Rho

The variation of polarization distribution of reflected beam at specular interface and far field caused by spin separation has been studied. Due to the diffraction effect, we find a distinct difference of light polarization at the two…

Optics · Physics 2015-06-05 Yu Jin , Zefang Wang , Yang Lv , Hao Liu , Ruifeng Liu , Pei Zhang , Hongrong Li , Hong Gao , Fuli Li

The property of linear and circular birefringence at each point of the optical medium has been evaluated here from differential matrix $N$ using the Jones calculus.This matrix lies on the OAM sphere for $l=1$ orbital angular momentum.The…

Optics · Physics 2011-03-17 Dipti Banerjee

Hints of cosmic microwave background polarization rotation ($\Delta\vartheta \sim 10^{-3}$ rad) are commonly attributed to late-time dynamics of ultralight axions. We show that such ultralight degrees of freedom are not required.…

High Energy Physics - Theory · Physics 2026-05-14 Nemanja Kaloper

Lasers with injected spin-polarized carriers show an outstanding performance in both static and dynamic operation. In addition to the intensity response of conventional lasers, without spin-polarized carriers, both intensity and…

Mesoscale and Nanoscale Physics · Physics 2023-08-01 Gaofeng Xu , Krish Patel , Igor Zutic

Enhanced beam shifts mediated by surface plasmon resonance (SPR) at metal-dielectric interfaces have been widely investigated. However, research on the associated Imbert-Fedorov or spin Hall shifts, driven by the spin-orbit interaction of…

Known methods for transverse confinement and guidance of light can be grouped into a few basic mechanisms, the most common being metallic reflection, total internal reflection and photonic-bandgap (or Bragg) reflection. All of them…

The propagation of electromagnetic waves in isotropic dielectric media with local dispersion is studied under the assumption of small but nonvanishing $\lambda/l$, where $\lambda$ is the wavelength, and $l$ is the characteristic…

Optics · Physics 2015-10-07 D. E. Ruiz , I. Y. Dodin

We show that the polarization state of coherent light propagating through an optically thick multiple-scattering medium, can be controlled by wavefront shaping, i.e. by controlling only the spatial phase of the incoming field with a spatial…

Optics · Physics 2015-06-05 Yefeng Guan , Ori Katz , Eran Small , Jianying Zhou , Yaron Silberberg

We observed that the polarization state of light after round-trip propagation through a birefringent medium frequently aligns with the employed input polarization state "mirrored" by the horizontal plane of the Poincare sphere. In this…

We theoretically demonstrate that a rotating electric-field component of circularly polarized microwave or terahertz light can induce electron-spin polarization within a few picoseconds in a two-dimensional electron system with the Rashba…

Strongly Correlated Electrons · Physics 2018-09-21 Masahito Mochizuki , Keisuke Ihara , Jun-ichiro Ohe , Akihito Takeuchi

It is recently noted that in certain centrosymmetric compounds, spin-orbit interaction couples each local sector that lacks inversion symmetry and thus leads to visible spin polarization effects in the real space, dubbed as 'hidden spin…

Mesoscale and Nanoscale Physics · Physics 2021-06-23 Yingjie Zhang , Pengfei Liu , Hongyi Sun , Hu Xu , Qihang Liu

We derive a simple expression for the photon helicity and polarisation-flip probabilities in arbitrary background fields, in the low energy regime. Taking the background to model a focused laser beam, we study the impact of pulse shape and…

High Energy Physics - Phenomenology · Physics 2014-08-28 Victor Dinu , Tom Heinzl , Anton Ilderton , Mattias Marklund , Greger Torgrimsson

Light polarization is one of the most fundamental features, equivalent to energy and coherence. Magnetism changes light polarization, and vice versa. The irradiation of intense circularly polarized femtosecond pules to magnetic materials…

As any physical object, light undergoing a circular trajectory features a constant extrinsic angular momentum. Within strong curvatures, this angular momentum can match the spin momentum of a photon, thus providing the opportunity of a…

Optics · Physics 2018-02-14 Y. Lefier , R. Salut , M. A. Suarez , T. Grosjean

The nature of changes in the interference pattern caused by the presence of polarization-changing elements in one or both beams of an interferometer, in particular those caused by an effective optical activity due to passage of a polarized…

Optics · Physics 2009-11-13 Rajendra Bhandari

Using a geometric approach for the propagation of light in anisotropic media, we investigate what effect the director field of disclinations may have on the polarization state of light. Parallel transport around the defect, of the spinor…

Soft Condensed Matter · Physics 2007-10-24 A. M. de M. Carvalho , C. Satiro , F. Moraes

We present a method to create spin-polarized beams of ballistic electrons in a two-dimensional electron system in the presence of spin-orbit interaction. Scattering of a spin-unpolarized injected beam from a lithographic barrier leads to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Hong Chen , J. J. Heremans , J. A. Peters , J. P. Dulka , A. O. Govorov , N. Goel , S. J. Chung , M. B. Santos

We report a strong experimental evidence of the optical anisotropy in a CdTe-based microcavity: the polarization of light is pinned to one of the crystallographic axes independently on the polarization of the excitation. The polarization…

Materials Science · Physics 2009-12-03 L. Klopotowski , M. D. Martin , A. Amo , L. Vina , I. A. Shelykh , M. M. Glazov , G. Malpuech , A. V. Kavokin , R. Andre
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