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相关论文: Electron vortex beams for chirality probing at the…

200 篇论文

Orbital angular momentum (OAM) carried by helical light beams is an unbounded degree of freedom of photons that offers a promising playground in modern photonics. So far, integrated sources of coherent light carrying OAM are based on…

This paper presents a full 3D Method of Moments (MoM) simulation for analysis of scattering from nano-scale chiral ribbon structures under optical vortex illumination to aim to investigate electromagnetic mechanism of circular dichroism…

材料科学 · 物理学 2026-01-27 Chenxu Wang , Hideki Kawaguchi , Hiroaki Nakamura , Koichi Matsuo , Masahiro Katoh

We theoretically investigate the generation of far-field propagating optical beams with a desired orbital angular momentum by using an archetypical magnetoplasmonic tip surrounded by a gold spiral slit. The use of a magnetic material can…

We study a scheme for electrical detection, using electron spin resonance, of coherent vibrations in a molecular single electron level trapped near a conduction channel. Both equilibrium spin-currents and non-equilibrium spin- and charge…

介观与纳米尺度物理 · 物理学 2008-09-17 J. Fransson , Jian-Xin Zhu

Electron chirality has been proposed as a microscopic quantity that characterizes electronic handedness, yet its underlying control parameter has not been clearly identified. Furthermore, its applicability is limited to systems with…

The optical chirality and spin angular momentum of structured scalar vortex beams has been intensively studied in recent years. The pseudoscalar topological charge $\ell$ of these beams is responsible for their unique properties.…

光学 · 物理学 2024-12-02 Kayn A. Forbes

Chirality is a concept that one object is not superimposable on its mirror image by translation and rotation. In particular, chiral plasmonics have been widely investigated due to their excellent optical chiral properties, and have led to…

光学 · 物理学 2023-07-18 Yuqing Cheng , Mengtao Sun

The capability to distinguish the handedness of circularly polarized light is a well-known intrinsic property of a chiral nanostructure. It is a long-standing controversial debate, however, whether a chiral object can also sense the…

光学 · 物理学 2019-07-29 Paweł Woźniak , Israel De León , Katja Höflich , Gerd Leuchs , Peter Banzer

We study the generic interaction of a monochromatic electromagnetic field with bi-isotropic nanoparticles. Such an interaction is described by dipole-coupling terms associated with the breaking of dual, P- and T-symmetries, including the…

光学 · 物理学 2014-07-23 Konstantin Y. Bliokh , Yuri S. Kivshar , Franco Nori

Inelastic interaction between coherent light with constant frequency and free electrons enables periodic phase modulation of electron wave packets leading to periodic side-bands in the electron energy spectra. In this Letter we propose a…

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…

高能物理 - 唯象学 · 物理学 2021-06-03 Defu Hou , Shu Lin

In this paper, we present an electrode geometry for the manipulation of ultracold rovibrational ground state NaK molecules. The electrode system allows to induce a dipole moment in trapped diatomic NaK molecules with a magnitude up to $68…

量子气体 · 物理学 2016-05-18 M. W. Gempel , T. Hartmann , T. A. Schulze , K. K. Voges , A. Zenesini , S. Ospelkaus

We explore chiroptical phenomena in 3D chiral nano-gap antennas using topology optimization. The characteristic helical geometries of the topology-designed antennas exhibit giant chiral dissymmetry (g=-1.70) considering the gap intensity,…

光学 · 物理学 2024-02-20 Atsushi Taguchi , Yamato Fukui , Keiji Sasaki

The synergy of judiciously engineered nanostructures and complex topology of light creates unprecedented opportunities for tailoring light-matter interactions on the nanoscale. Electromagnetic waves can carry multiple units of angular…

Orbital angular momentum (OAM) of photons is carried upon the wave front of an optical vortex and is important in physics research due to its fundamental degree of freedom. As for the interaction with materials, the optical OAM was shown to…

应用物理 · 物理学 2018-09-17 Yoshiki Kohmura , Kei Sawada , Masaichiro Mizumaki , Kenji Ohwada , Tetsuya Ishikawa

We introduce a new mechanism for the propulsion and separation by chirality of small ferromagnetic particles suspended in a liquid. Under the action of a uniform d.c. magnetic field H and an a.c. electric field E isomers with opposite…

软凝聚态物质 · 物理学 2015-05-27 E. Kirkinis , A. V. Andreev , B. Spivak

We exploit free-space interactions between electron beams and tailored light fields to imprint on-demand phase profiles on the electron wave functions. Through rigorous semiclassical theory involving a quantum description of the electrons,…

量子物理 · 物理学 2021-03-31 F. Javier García de Abajo , Andrea Konečná

Magnetic vortices are characterized by the senses of in-plane magnetization chirality and by the polarity of the vortex core. The electrical control of vortex polarity and chirality is highly demanded not only for fundamental understanding…

材料科学 · 物理学 2019-03-05 Y. M. Luo , Y. Z. Wu , C. Q. Yu , H. Li , J. H. Wen , L. Y. Zhu , Z. H. Qian , T. J. Zhou

We examine, both experimentally and theoretically, an interaction of tightly focused polarized light with a slit on a metal surface supporting plasmon-polariton modes. Remarkably, this simple system can be highly sensitive to the…

The radiation of an emitter does not depend only on its intrinsic properties but also on the surrounding photonic environment, the notion of which is essential in the developments of lasers, quantum optics and other light-matter interaction…

光学 · 物理学 2018-04-03 Xing-Yuan Wang , Hua-Zhou Chen , Suo Wang , Li Ge , Shuang Zhang , Ren-Min Ma