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Proceedings Paper

Enhanced transmission through a nanoslit bordered by both trenches and bumps nanostructures
Author(s): C. M. Wang; C. C. Chao; J. Y. Chang
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Paper Abstract

A very large transmission, 20%, of light through a nano metallic slit bordered by both nano trenches and bumps has been demonstrated theoretically. The trenches bordering the nano slit, are used to excite free-space light into surface waves, while the bumps bordering the trenches are used to confine surface wave leakage. Over 50% of the escaping surface waves can be reclaimed by using a pair of bumps with a reflectivity larger than 99%. As a result, the transmission of a trench-surrounded slit bordered by a pair of bumps can be enhanced 1.5 fold.

Paper Details

Date Published: 3 October 2006
PDF: 7 pages
Proc. SPIE 6324, Plasmonics: Nanoimaging, Nanofabrication, and their Applications II, 632411 (3 October 2006); doi: 10.1117/12.679907
Show Author Affiliations
C. M. Wang, Academia Sinica (Taiwan)
C. C. Chao, National Central Univ. (Taiwan)
J. Y. Chang, National Central Univ. (Taiwan)

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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