Open AccessOptical near-field–mediated polarization asymmetry induced by two-layer nanostructures
Author(s) -
Makoto Naruse,
Naoya Tate,
Yasuyuki Ohyagi,
Morihisa Hoga,
Tsutomu Matsumoto,
Hirokazu Hori,
Aurélien Drezet,
S. Huant,
Motoichi Ohtsu
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.021857
Subject(s) - nanophotonics , polarization (electrochemistry) , asymmetry , optics , near and far field , nanostructure , physics , near field optics , circular polarization , electromagnetic field , photon polarization , angular spectrum method , photon , optoelectronics , materials science , nanotechnology , diffraction , scanning electron microscope , chemistry , optical microscope , quantum mechanics , microstrip
We demonstrate that a two-layer shape-engineered nanostructure exhibits asymmetric polarization conversion efficiency thanks to near-field interactions. We present a rigorous theoretical foundation based on an angular-spectrum representation of optical near-fields that takes account of the geometrical features of the proposed device architecture and gives results that agree well with electromagnetic numerical simulations. The principle used here exploits the unique intrinsic optical near-field processes associated with nanostructured matter, while eliminating the need for conventional scanning optical fiber probing tips, paving the way to novel nanophotonic devices and systems.