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Proceedings Paper

Negative permittivity chamber inside a stack of silver nanorings
Author(s): Sheng Chung Chen; Jr Chau Shiu
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Paper Abstract

The interactions of silver nanorings with polarized optical wave are numerically studied. If the resonant conditions are tuned, the polarization of incident field, inside the nanoring hole, will be reversed by the single silver nanoring due to the surface plasmon resonance, thus, the nanoring hole becomes a region of which permittivity is negative. Put two identical silver nanorings closely, there are two nodes happened between nanorings. It indicates that there is a very steep gradient of electric field and quasi-standing waves exist between nanorings. If many silver nanorings are lined up, the holes of the nanorings will form a negative permittivity chamber. The more close to the center of the chamber, the more ideal the polarization is reversed.

Paper Details

Date Published: 10 May 2010
PDF: 6 pages
Proc. SPIE 7712, Nanophotonics III, 77120B (10 May 2010); doi: 10.1117/12.855049
Show Author Affiliations
Sheng Chung Chen, Far East Univ. (Taiwan)
Jr Chau Shiu, Far East Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7712:
Nanophotonics III
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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