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Conferences > OPJ > 2017 > NOM2 > 30pON2
  • 2017 OPJ-OSA Joint Symposia on Nanophotonics and Digital Photonics
  • OSA Technical Digest (online) (Optica Publishing Group, 2017),
  • paper 30pON2

Vortex nearfield with orbital angular momentum enables the chiral mass-transport in nano-scale

Keigo Masuda, Shogo Nakano, Yoshinori Kinezuka, Seigo Ohno, Daisuke Sakai, Kenji Harada, Katsuhiko Miyamoto, and Takashige Omatsu

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Abstract

We discover that vortex near-field with orbital angular momentum, generated around a chiral surface relief formed by optical vortex illumination, can induce chiral mass-transport of azo-polymer in a sub-wavelength scale, so as to establish a chiral structure with a diameter of ~300 nm and a height of ~150nm. Such chiral mass-transport is originated by spin-orbital coupling effects between the chiral surface relief and a circularly polarized light.

© 2017 Optical Society of Japan

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