Spin-enabled plasmonic metasurfaces for manipulating orbital angular momentum of light

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Guixin Li
  • Ming Kang
  • Shumei Chen
  • Shuang Zhang
  • K. W. Cheah
  • Jensen Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)4148-4151
Journal / PublicationNano Letters
Volume13
Issue number9
Publication statusPublished - 11 Sep 2013

Abstract

Here, we investigate the spin-induced manipulation of orbitals using metasurfaces constructed from geometric phase elements. By carrying the spin effects to the orbital angular momentum, we show experimentally the transverse angular splitting between the two spins in the reciprocal space with metasurface, as a direct observation of the optical spin Hall effect, and an associated global orbital rotation through the effective orientations of the geometric phase elements. Such spin-orbit interaction from a metasurface with a definite topological charge can be geometrically interpreted using the recently developed high order Poincaré sphere picture. These investigations may give rise to an extra degree of freedom in manipulating optical vortex beams and orbitals using "spin-enabled" metasurfaces. © 2013 American Chemical Society.

Research Area(s)

  • Metasurface, optical spin Hall effect, orbital rotation, spin-orbit interaction

Citation Format(s)

Spin-enabled plasmonic metasurfaces for manipulating orbital angular momentum of light. / Li, Guixin; Kang, Ming; Chen, Shumei; Zhang, Shuang; Pun, Edwin Yue-Bun; Cheah, K. W.; Li, Jensen.

In: Nano Letters, Vol. 13, No. 9, 11.09.2013, p. 4148-4151.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal