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The interaction between circularly polarized (CP) light and matter is governed by two fundamental quantities: spin angular momentum (SAM) and optical chirality (OC). While these quantities are inseparable in free space, they can be…

The combination of single photon emitters (quantum dots) and tailored metal nanoparticles with defined size and shape allows a detailed study of the interaction between light and matter. The enhanced optical near-field of the nanoparticles…

Mesoscale and Nanoscale Physics · Physics 2017-04-21 Gernot Schaffernak , Christian Gruber , Joachim R. Krenn , Markus Krug , Marija Gašparić , Martin Belitsch , Andreas Hohenau

Spin-orbit coupling in crystals is known to lead to unusual direction dependent exchange interactions, however understanding of the consequeces of such effects in molecular crystals is incomplete. Here we perform four component relativistic…

Strongly Correlated Electrons · Physics 2017-04-19 A. C. Jacko , A. L. Khosla , J. Merino , B. J. Powell

Mie theory is the classical problem for modeling of light scattering by spherical particles. In this paper, we perform a spherical harmonic analysis of its solution for the induced fields to reveal the physics underlying the resonant…

Optics · Physics 2024-01-10 Yuriy A. Akimov

Plasmonic vortices (PV) excited by a highly focused radially polarized optical vortex (RPOV) beam on a metal surface are investigated experimentally and theoretically. The proposed method reveals a direct phase singularity and orbital…

Optics · Physics 2011-10-11 X. -C. Yuan , Z. J. Hu , G. H. Yuan , Z. Shen

We investigate electron spin currents induced optically via plasmonic modes in the Kretschmann configuration. By utilising the scattering matrix formalism, we take the plasmonic mode coupled to external laser drive into consideration and…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 Daigo Oue , Mamoru Matsuo

Anisotropic magnetic exchange interactions lead to a surprisingly rich variety of the magnetic properties. Considering the spin orbit coupling (SOC) as perturbation, we extract the general expression of a bilinear spin Hamiltonian,…

Materials Science · Physics 2023-08-29 Di Wang , Xiangyan Bo , Feng Tang , Xiangang Wan

The wave nature of electrons in semiconductor nanostructures results in spatial interference effects similar to those exhibited by coherent light. The presence of spin-orbit coupling renders interference in spin space and in real space…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 U. Zuelicke

Laboratory optics, typically dealing with monochromatic light beams in a single reference frame, exhibits numerous spin-orbit interaction phenomena due to the coupling between the spin and orbital degrees of freedom of light. Similar…

Optics · Physics 2018-04-18 D. A. Smirnova , V. M. Travin , K. Y. Bliokh , F. Nori

We report a systematic study on strong enhancement of spin-orbit interaction (SOI) in graphene driven by transition-metal dichalcogenides (TMDs). Low temperature magnetotoransport measurements of graphene proximitized to different TMDs…

Mesoscale and Nanoscale Physics · Physics 2019-06-12 T. Wakamura , F. Reale , P. Palczynski , M. Q. Zhao , A. T. C. Johnson , S. Guéron , C. Mattevi , A. Ouerghi , H. Bouchiat

We study point-like polarizable particles confined in a 1D very elongated trap within the evanescent field of an optical nano-fiber or nano-structure. When illuminated transversely by coherent light, collective light scattering into…

Optics · Physics 2015-06-22 Daniela Holzmann , Matthias Sonnleitner , Helmut Ritsch

Anisotropy of spin-orbit interaction (SOI) is studied for a single uncapped InAs self-assembled quantum dot (SAQD) holding just a few electrons. The SOI energy is evaluated from anti-crossing or SOI induced hybridization between the ground…

Mesoscale and Nanoscale Physics · Physics 2011-01-05 S. Takahashi , R. S. Deacon , K. Yoshida , A. Oiwa , K. Shibata , Y. Tokura , S. Tarucha

The electronic spin-orbit coupling in carbon nanotubes is strongly enhanced by the curvature of the tube surface and has important effects on the single-particle spectrum. Here, we include the full spin-orbit interaction in the formulation…

Mesoscale and Nanoscale Physics · Physics 2010-07-16 A. Schulz , A. De Martino , R. Egger

By exploiting our recently derived exact formula for the Lindhard polarization function in the presence of Bychkov-Rashba (BR) and Dresselhaus (D) spin-orbit interaction (SOI), we show that the interplay of different SOI mechanisms induces…

Mesoscale and Nanoscale Physics · Physics 2010-08-03 S. M. Badalyan , A. Matos-Abiague , G. Vignale , J. Fabian

We theoretically study the inverse Faraday effect, i.e., the optical induction of spin polarization with circularly polarized light, by particularly focusing on effects of band dispersions and Fermi surfaces in crystal systems with the…

Strongly Correlated Electrons · Physics 2020-08-24 Yasuhiro Tanaka , Takashi Inoue , Masahito Mochizuki

Observation of surface-plasmon phenomena that are dependent upon the handedness of the circularly polarized incident light (spin) is presented. The polarization-dependent near-field intensity distribution obtained in our experiment is…

Optics · Physics 2008-08-01 Y. Gorodetski , A. Niv , V. Kleiner , E. Hasman

The introduction of spin-orbit interactions (SOIs) and the subsequent appearance of a two-dimensional (2D) topological phase are crucial for voltage-controlled and zero-emission energy spintronic devices. In contrast, graphene basically…

Mesoscale and Nanoscale Physics · Physics 2019-04-05 T. Namba , K. Tamura , K. Hatsuda , T. Nakamura , C. Ohata , S. Katsumoto , J. Haruyama

B20 compounds are a class of cubic helimagnets harboring nontrivial spin textures such as spin helices and skyrmions. It has been well understood that the Dzyaloshinskii-Moriya (DM) interaction is the origin of these textures, and the…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Jian Kang , Jiadong Zang

The spin-orbit coupling (SOC) in semiconductors is strongly influenced by structural asymmetries, as prominently observed in bulk crystal structures that lack inversion symmetry. Here, we study an additional effect on the SOC: the asymmetry…

We demonstrate both analytically and numerically the existence of optical pulling forces acting on particles located near plasmonic interfaces. Two main factors contribute to the appearance of this negative reaction force. The interference…

Optics · Physics 2016-01-25 M. I. Petrov , S. V. Sukhov , A. A. Bogdanov , A. S. Shalin , A. Dogariu