Format

Send to

Choose Destination
See comment in PubMed Commons below
Nano Lett. 2011 Dec 14;11(12):5524-30. doi: 10.1021/nl203418c. Epub 2011 Nov 30.

Plasmonic whispering gallery cavities as optical nanoantennas.

Author information

1
Center for Nanophotonics, FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands. vesseur@amolf.nl

Abstract

We study the resonant modes of surface plasmon whispering gallery cavities based on a circular groove in a Au surface. We use spatially, angle-, and polarization-resolved cathodoluminescence spectroscopy to measure the resonant plasmonic local field distribution at deep-subwavelength resolution and determine the far-field radiation distribution for each plasmonic mode. We show mode-selective excitation of the plasmonic modes and resolve the modal angular radiation pattern. The results show that plasmonic whispering gallery resonators can be used as versatile antennas both in receiving and transmitting mode.

PMID:
22129451
DOI:
10.1021/nl203418c
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Support Center