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Proceedings Paper

Adiabatic propagation and nano-guiding of two-dimensional optical waves in wedged negative dielectric gap waveguides
Author(s): Junichi Takahara; Noriyuki Miyoshi; Yohei Matsui; Fuminori Kusunoki
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Paper Abstract

Wedged negative dielectric gap waveguide has been studied theoretically. FDTD simulations show adiabatic wavenumber conversion in coupled mode of surface plasmon polariton along the wedged structure. In addition, field enhancement has been observed at the output of the wedged structure even in large propagation loss of metals. We propose wedged negative dielectric gap waveguide as an efficient nano-optical coupler between optical fibers to nano-optical circuits. Propagation modes in metal gap waveguide formed on a prism have been studied experimentally by using attenuated total reflection method.

Paper Details

Date Published: 11 September 2006
PDF: 8 pages
Proc. SPIE 6324, Plasmonics: Nanoimaging, Nanofabrication, and their Applications II, 632403 (11 September 2006); doi: 10.1117/12.680298
Show Author Affiliations
Junichi Takahara, Osaka Univ. (Japan)
Noriyuki Miyoshi, Osaka Univ. (Japan)
Yohei Matsui, Osaka Univ. (Japan)
Fuminori Kusunoki, Technology Research Institute of Osaka Prefecture (Japan)

Published in SPIE Proceedings Vol. 6324:
Plasmonics: Nanoimaging, Nanofabrication, and their Applications II
Satoshi Kawata; Vladimir M. Shalaev; Din Ping Tsai, Editor(s)

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