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Spin–orbit coupling in surface plasmon scattering by nanostructures

Author

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  • D. O’Connor

    (King’s College London, Strand
    Present address: National Physical Laboratory, Teddington TW11 0LW, UK)

  • P. Ginzburg

    (King’s College London, Strand
    National University for Information Technology, Mechanics and Optics (ITMO))

  • F. J. Rodríguez-Fortuño

    (King’s College London, Strand)

  • G. A. Wurtz

    (King’s College London, Strand)

  • A. V. Zayats

    (King’s College London, Strand)

Abstract

The spin Hall effect leads to the separation of electrons with opposite spins in different directions perpendicular to the electric current flow because of interaction between spin and orbital angular momenta. Similarly, photons with opposite spins (different handedness of circular light polarization) may take different trajectories when interacting with metasurfaces that break spatial inversion symmetry or when the inversion symmetry is broken by the radiation of a dipole near an interface. Here we demonstrate a reciprocal effect of spin–orbit coupling when the direction of propagation of a surface plasmon wave, which intrinsically has unusual transverse spin, determines a scattering direction of spin-carrying photons. This spin–orbit coupling effect is an optical analogue of the spin injection in solid-state spintronic devices (inverse spin Hall effect) and may be important for optical information processing, quantum optical technology and topological surface metrology.

Suggested Citation

  • D. O’Connor & P. Ginzburg & F. J. Rodríguez-Fortuño & G. A. Wurtz & A. V. Zayats, 2014. "Spin–orbit coupling in surface plasmon scattering by nanostructures," Nature Communications, Nature, vol. 5(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6327
    DOI: 10.1038/ncomms6327
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    Cited by:

    1. Yu Zhang & Zhibin Li & Zhen Che & Wang Zhang & Yusen Zhang & Ziqi Lin & Zhan Lv & Chunling Wu & Longwei Han & Jieyuan Tang & Wenguo Zhu & Yi Xiao & Huadan Zheng & Yongchun Zhong & Zhe Chen & Jianhui Y, 2024. "Dynamics of polarization-tuned mirror symmetry breaking in a rotationally symmetric system," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Li, Chunyan & Konotop, Vladimir V. & Malomed, Boris A. & Kartashov, Yaroslav V., 2023. "Bound states in Bose-Einstein condensates with radially-periodic spin-orbit coupling," Chaos, Solitons & Fractals, Elsevier, vol. 174(C).

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