Optical near-field-mediated polarization asymmetry induced by two-layer nanostructures

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 geometric...

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Published inOptics express Vol. 21; no. 19; pp. 21857 - 21870
Main Authors Naruse, Makoto, Tate, Naoya, Ohyagi, Yasuyuki, Hoga, Morihisa, Matsumoto, Tsutomu, Hori, Hirokazu, Drezet, Aurélien, Huant, Serge, Ohtsu, Motoichi
Format Journal Article
LanguageEnglish
Published United States Optical Society of America - OSA Publishing 23.09.2013
Subjects
Optics
Physics
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Summary: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.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.21.021857