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Arrays of optically trapped nanoparticles have emerged as a promising platform for the study of complex non-equilibrium phenomena. Analogous to atomic many-body systems, one of the crucial ingredients is the ability to precisely control the…

The transverse component of the spin angular momentum of evanescent waves gives rise to lateral optical forces on chiral particles, which have the unusual property of acting in a direction in which there is neither a field gradient nor wave…

Optics · Physics 2014-12-23 Amaury Hayat , J. P. Balthasar Müller , Federico Capasso

Optical chirality (OC) - one of the fundamental quantities of electromagnetic fields - corresponds to the instantaneous chirality of light. It has been utilized for exploring chiral light-matter interactions in linear optics, but has not…

Optics · Physics 2018-04-04 Ofer Neufeld , Oren Cohen

Laser has become a powerful tool to manipulate micro-particles and atoms by radiation pressure force or photophoretic force, but optical manipulation is less noticeable for large objects. Optically-induced negative forces have been proposed…

Optics · Physics 2020-08-11 Gui-hua Chen , Mu-ying Wu , Yong-qing Li

Based on nonlinear optics, we develop a band theory to elucidate how light could manipulate magnetization, which is rooted by the quantum geometric structure and topological nature of electronic wavefunctions. Their existence are determined…

Materials Science · Physics 2025-04-03 Qianqian Xue , Yan Sun , Jian Zhou

The creation and detection of atomic polarization is examined theoretically, through the study of basic optical-pumping mechanisms and absorption and fluorescence measurements, and the dependence of these processes on the size of ground-…

Atomic Physics · Physics 2013-05-29 M. Auzinsh , D. Budker , S. M. Rochester

We study the light scattering by localized quasi planar excitations of a Cholesteric Liquid Crystal known as spherulites. Due to the anisotropic optical properties of the medium and the peculiar shape of the excitations, we quantitatively…

Soft Condensed Matter · Physics 2018-10-24 G. De Matteis , D. Delle Side , L. Martina , V. Turco

We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation. Firstly, we show that isolated nanowire pairs are subject to much…

Materials Science · Physics 2012-03-22 Rongkuo Zhao , Philippe Tassin , Thomas Koschny , Costas M. Soukoulis

We calculate the force of a near-resonant guided light field of an ultrathin optical fiber on a two-level atom. We show that, if the atomic dipole rotates in the meridional plane, the magnitude of the force of the guided light depends on…

Quantum Physics · Physics 2018-07-04 Fam Le Kien , S. Sahar S. Hejazi , Viet Giang Truong , Sile Nic Chormaic , Thomas Busch

We put forward a theory on the optical force exerted upon a dipolar particle by a stationary and ergodic partially coherent light field. We show through a rigorous analysis that the ensemble averaged electromagnetic force is given in terms…

Optics · Physics 2016-11-26 Juan Miguel Auñón , Manuel Nieto-Vesperinas

High-index spherical nanoparticles with low material losses support sharp high-Q electric and magnetic resonances and exhibit a number of interesting optical phenomena. Developments in fabrication techniques have enabled the further study…

Optics · Physics 2020-12-30 D. A. Pidgayko , Z. F. Sadrieva , K. S. Ladutenko , A. A. Bogdanov

Polarizers are key components in optical science and technology. Thus, understanding the action of a polarizer beyond oversimplifying approximations is crucial. In this work, we study the interaction of a polarizing interface with an…

Trapped Rydberg atoms are highly promising candidates for quantum science experiments. While several approaches have been put forward to exert (trapping) forces on isolated Rydberg atoms, a widely applicable lossless technique is lacking.…

Atomic Physics · Physics 2025-06-23 A. Bhowmik , D. Blume

The practical applications of chiral discrimination are usually limited by the weak chiral response of enantiomers and the high complexity of detection methods. Here, we propose to use the C lines (i.e., lines of polarization singularities)…

Optics · Physics 2022-03-22 Shiqi Jia , Jie Peng , Yuqiong Cheng , Shubo Wang

We report a dramatic enhancement of the lateral optical forces induced on electrically polarizable Rayleigh particles near hyperbolic and extremely anisotropic metasurfaces under simple plane wave illumination. Such enhancement is enabled…

Applied Physics · Physics 2019-04-03 N. K. Paul , D. Correas-Serrano , J. S. Gomez-Diaz

Experiments in the field of optomechanics do not yet fully exploit the photon polarization degree of freedom. Here experimental results for an optomechanical interaction in a polarization nondegenerate system are presented and schemes are…

Quantum Physics · Physics 2016-12-14 F. M. Buters , M. J. Weaver , H. J. Eerkens , K. Heeck , S. de Man , D. Bouwmeester

This fluid dynamics video showcases how optically induced electrokinetic forces can be used to drive three-dimensional micro-vortices. The strong microfluidic vortices are used constructively in conjunction with other electrokinetic forces…

Fluid Dynamics · Physics 2015-05-13 Stuart J. Williams , Aloke Kumar , Steven T. Wereley

Light interacts differently with left and right handed three dimensional chiral objects, like helices, and this leads to the phenomenon known as optical activity. Here, by applying a polarization tomography, we show experimentally, for the…

Optics · Physics 2015-05-18 A. Drezet , C. Genet , J. -Y. Laluet , T. W. Ebbesen

Chirality is a fundamental property of great importance in physics, chemistry, and biology, and has recently been found to generate unexpected spin polarization for electrons passing through organic molecules, known as chirality-induced…

Mesoscale and Nanoscale Physics · Physics 2024-01-25 Qun Yang , Yongkang Li , Claudia Felser , Binghai Yan

The measurement of the integrated optical polarization of weakly gravitationally lensed galaxies can provide considerable constraints on lens models. The method outlined depends on fact that the orientation of the direction of optical…

Astrophysics · Physics 2009-10-30 Edouard Audit , John F. L. Simmons
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