OPTICAL ANTENNA-PROBES BASED ON METALLIC NANOSHELLS

Alexander Karaev, Andrey Denisyuk

2011 , VOLUME 11, NUMBER 4 ( JULY-AUGUST )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
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OPTICAL ANTENNA-PROBES BASED ON METALLIC NANOSHELLS

A. Karaev, A. Denisyuk

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Abstract

We investigate the possibility of using complex metallic nanostructures based on metallic nanoshells as near-field optical probes. Due to the effect of plasmon resonance such structures are able to effectively concentrate the energy of incident optical radiation to a subwavelength area. We present the results of numerical modeling of optical antennas electrodynamics performed by finite difference time-domain method. Also we investigate the ways of experimental fabrication of such nanostructures.

Keywords: near-field optical microscopy, optical antennas, metallic nanoparticles.

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