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Optical Faraday rotation is one of the most direct and practically important manifestations of magnetically broken time-reversal symmetry. The rotation angle is proportional to the distance traveled by the light, and up to now sizeable…

A beam of linearly polarized light transmitted through magnetically biased graphene can have its axis of polarization rotated by several degrees after passing the graphene sheet. This large Faraday effect is due to the action of the…

材料科学 · 物理学 2016-07-06 Jürgen Schiefele , Luis Martin-Moreno , Francisco Guinea

We study magneto--optical properties of monolayer graphene by means of quantum field theory methods in the framework of the Dirac model. We reveal a good agreement between the Dirac model and a recent experiment on giant Faraday rotation in…

介观与纳米尺度物理 · 物理学 2012-11-30 I. V. Fialkovsky , D. V. Vassilevich

When two-dimensional electron gases (2DEGs) are exposed to magnetic field, they resonantly absorb electromagnetic radiation via electronic transitions between Landau levels (LLs). In 2DEGs with a Dirac spectrum, such as graphene, theory…

强关联电子 · 物理学 2019-07-15 Ievgeniia O. Nedoliuk , Sheng Hu , Andre K. Geim , Alexey B. Kuzmenko

Graphene can be magnetized through nonlinear response of its orbital angular momentum to an intense circularly polarized light. This optomagnetic effect can be well exemplified by the Inverse Faraday Effect (IFE) where an…

光学 · 物理学 2023-07-26 Sina Abedi , A. Hamed Majedi

We present a theoretical investigation of the polarization plane rotation at light transmission - Faraday effect, through one-dimensional multilayered magneto-photonic systems consisting of periodically distributed magnetic and dielectric…

介观与纳米尺度物理 · 物理学 2018-11-27 Yuliya S. Dadoenkova , Nataliya N. Dadoenkova , Igor L. Lyubchanskii , Jarosław W. Kłos , Maciej Krawczyk

We model the low energy dynamics of graphene in the continuum in terms of a version of Reduced Quantum Electrodynamics restricting fermions to a (2+1)-dimensional brane, whilst photons remain within the (3+1)-dimensional bulk. For charge…

介观与纳米尺度物理 · 物理学 2016-05-25 Saúl Hernández-Ortiz , David Valenzuela , Alfredo Raya , Saúl Sánchez-Madrigal

Hydrogen adsorption on graphene in commensurate periodic arrangements leads to bandgap opening at the Dirac point and the emergence of dispersionless midgap bands. We study these bandgap effects and their dependence on periodicity for a…

介观与纳米尺度物理 · 物理学 2012-05-15 Mahboobeh Mirzadeh , Mani Farjam

We studied theoretically the effect of a low concentration of adsorbed polar molecules on the optical conductivity of graphene, within the Kubo linear response approximation. Our analysis is based on a continuum model approximation that…

介观与纳米尺度物理 · 物理学 2021-07-07 Horacio Falomir , Marcelo Loewe , Enrique Muñoz

Magneto-optical transitions between Landau levels can provide precise spectroscopic information on the electronic structure and excitation spectra of graphene, enabling probes of substrate and many-body effects. We calculate the…

介观与纳米尺度物理 · 物理学 2015-09-15 L. A. Chizhova , J. Burgdörfer , F. Libisch

We report the observation of the magnetic field induced circular differential deflection of light at the interface of a Faraday medium. The difference in the angles of refraction or reflection between the two circular polarization…

光学 · 物理学 2009-11-13 Ambarish Ghosh , Peer Fischer

The magnetic circular dichroism and the Faraday rotation are the fundamental phenomena of great practical importance arising from the breaking of the time reversal symmetry by a magnetic field. In most materials the strength and the sign of…

We investigate experimentally and theoretically the Faraday effect in an atomic medium in the hyperfine Paschen-Back regime, where the Zeeman interaction is larger than the hyperfine splitting. We use a small permanent magnet and a…

原子物理 · 物理学 2014-03-27 Mark A Zentile , Rebecca Andrews , Lee Weller , Svenja Knappe , Charles S Adams , Ifan G Hughes

We report the magneto-optical rotation effect in a periodic graphene-sheet structure. Due to the masslessness of carriers in graphene, the magnetic response is very sensitive and the magneto-optical rotation effect is therefore significant.…

介观与纳米尺度物理 · 物理学 2012-11-19 Daqing Liu , Shengli Zhang , Ning Ma , Xinghua Li

We report significant changes of optical conductivity in single layer graphene induced by mild oxygen plasma exposure, and explore the interplay between carrier doping, disorder, and many-body interactions from their signatures in the…

We manipulate optical Tamm states in graphene-based photonics to achieve and steer large magneto-optical effects. Here we report the presence of a giant Faraday rotation via a single graphene layer of atomic thickness while keeping a high…

Graphene has shown great application opportunities in future nanoelectronic devices due to its outstanding electronic properties. Moreover, its impressive optical properties have been attracting the interest of researchers, and, recently,…

The theory of optical effects in hydrogenated graphene (graphane) in terahertz and infrared range is developed, including the analysis of complex conductivity, reflection coefficient for graphane on a substrate and dispersion of surface…

介观与纳米尺度物理 · 物理学 2022-10-19 E. I. Preobrazhensky , I. V. Oladyshkin , M. D. Tokman

We study electromagnetic properties of a double layer graphene system in which electrons from one layer are coupled with holes from the other layer. The gauge invariant linear response functions are obtained. The frequency dependences of…

介观与纳米尺度物理 · 物理学 2016-06-01 K. V. Germash , D. V. Fil

The electronic properties of graphene are unique and are attracting increased attention to this novel 2-dimensional system. Its photonic properties are not less impressive. For example, this single atomic layer absorbs through direct…

材料科学 · 物理学 2009-12-25 Fengnian Xia , Thomas Mueller , Yu-ming Lin , Alberto Valdes-Garcia , Phaedon Avouris
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