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We investigate the origin of the translational symmetry breaking in epitaxially grown single-layer graphene. Despite the surface morphology of homogeneous graphene films influenced by the presence of mutually parallel SiC surface terraces,…

Graphene can support surface plasmons with higher confinement, lower propagation loss, and substantially more tunable response compared to usual metal-based plasmonic structures. Interestingly, plasmons in graphene can strongly couple with…

Optics · Physics 2023-08-03 Tianjing Guo , Christos Argyropoulos

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…

Optics · Physics 2014-07-23 Konstantin Y. Bliokh , Yuri S. Kivshar , Franco Nori

Metal nanoantennas supporting localized surface plasmon resonances have become an indispensable tool in bio(chemical) sensing and nanoscale imaging applications. The high plasmon-enhanced electric field intensity in the visible or near-IR…

A zigzag graphene nanodisk can be interpreted as a quantum dot with an internal degree of freedom. It is well described by the infinite-range Heisenberg model. We have investigated its thermodynamical properties. There exists a quasi-phase…

Mesoscale and Nanoscale Physics · Physics 2009-10-06 Motohiko Ezawa

We theoretically investigate the electromagnetic response of a novel class of multi-layered metamaterials obtained by alternating graphene sheets and dielectric layers, the whole structure not exhibiting a plane of reflection symmetry along…

Optics · Physics 2013-10-24 Carlo Rizza , Elia Palange , Alessandro Ciattoni

Light beams, with their rich degrees of freedom, including polarization and phase, along with their flexible tunability, have emerged as an ideal tool for generating magnetic topological textures.However, how to precisely control the light…

Optics · Physics 2026-02-03 Qifan Zhang , Shirong Lin , Wu Zhang

The decay dynamics of excited carriers in graphene have attracted wide scientific attention, as the gapless Dirac electronic band structure opens up relaxation channels that are not allowed in conventional materials. We report…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Laura Kim , Seyoon Kim , Pankaj K. Jha , Victor W. Brar , Harry A. Atwater

We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelength, we show that the excitation of collective surface plasmon…

The development of spintronic technology with increasingly dense, high-speed, and complex devices will be accelerated by accessible microscopy techniques capable of probing magnetic phenomena on picosecond time scales and at deeply…

Optics · Physics 2017-05-05 Jonathan C. Karsch , Jason M. Bartell , Gregory D. Fuchs

We study magnon-plasmon coupling in effectively two-dimensional stacks of van der Waals layers in the context of the band structure topology. Invoking the quasiparticle approximation, we show that the magnetic dipole coupling between the…

Mesoscale and Nanoscale Physics · Physics 2026-05-12 Tomoki Hirosawa , Pieter M. Gunnink , Alexander Mook

Nanographene-based magnetism at interfaces offers an avenue to designer quantum materials towards novel phases of matter and atomic-scale applications. Key to spintronics applications at the nanoscale is bistable spin-crossover which…

The relationship between magnetization and light has been the subject of intensive research for the past century, focusing on the impact of magnetic moments on light polarization. Conversely, the manipulation of magnetism through polarized…

Light-matter interactions at the nanoscale constitute a fundamental ingredient for engineering applications in nanophotonics and quantum optics. To this regard electromagnetic Mie resonances excited in high-refractive index dielectric…

Peculiar ring gap modes on the surface of disk close to the metallic thin film are excited in the visible light regime. We apply plasmon hybridization method to illustrate the ring gap modes arising from the interaction between localized…

Optics · Physics 2021-02-02 Guodong Zhu , Linhong Qv , Yangzhe Guo , Yurui Fang

In this work, we determine the effects of temperature on the magnetoplasmon spectrum of an electrically modulated graphene monolayer as well as the two-dimensional electron gas (2DEG). The intra-Landau-band magnetoplasmon spectrum within…

Mesoscale and Nanoscale Physics · Physics 2011-09-23 M. Tahir , K. Sabeeh , A. MacKinnon

Enantioselective interactions of chiral molecules include distinct absorptions to opposite-handed circularly polarized light, known as chiral absorption. Traditionally, chiral absorption has been primarily attributed to electric dipole and…

Optics · Physics 2024-06-03 Hanwei Wang , Yang Zhao

We theoretically investigate the plasmonic heating of graphene-based systems under the mid-infrared laser irradiation, where periodic arrays of graphene plasmonic resonators are placed on dielectric thin films. Optical resonances are…

Applied Physics · Physics 2019-12-18 Anh D. Phan , Do T. Nga , Do C. Nghia , Vu D. Lam , Katsunori Wakabayashi

A hybrid structure of a graphene nanomesh with the gold nanodisks is studied to enhance the light absorption by localized surface plasmon resonance. From the reflection spectra of the visible range for graphene nanomesh samples without and…

Materials Science · Physics 2017-02-02 Yang Wu , Jing Niu , Mohammad Danesh , Jingbo Liu , Yuanfu Chen , Lin Ke , Chengwei Qiu , Hyunsoo Yang

The magnetic skyrmion is a nanoscale topological object characterized by the winding of the magnetic moments, appearing in magnetic materials with broken inversion symmetry. Because of its low current threshold for driving, the skyrmions…

Mesoscale and Nanoscale Physics · Physics 2019-10-30 Ryo Iguchi , Shinya Kasai , Kazushige Koshikawa , Norimichi Chinone , Shinsuke Suzuki , Ken-ichi Uchida