TITLE

Plasmonic antenna array at optical frequency made by nanoapertures

AUTHOR(S)
Zhang, Z. J.; Peng, R. W.; Wang, Z.; Gao, F.; Huang, X. R.; Sun, W. H.; Wang, Q. J.; Wang, Mu
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p171110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We show here that the plasmonic array based on nanoapertures in ultrathin silver film radiates at optical frequency and behaves as an optical antenna array (OAA). The far-field radiation originates from the coherent superposition of plasmonic emissions on each bank of the aperture. The radiation of OAA presents a strong directivity, which depends on the in-plane rotation of aperture array, and on the polarization and incidence angle of the excitation light as well. We suggest that these features have potential applications in photovoltaics, light-emitting devices, and optical sensors.
ACCESSION #
35279034

 

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