Title

Mode Structure of Planar Optical Antennas on Dielectric Substrates

Published In

Optics Express

Document Type

Article

Publication Date

8-2016

Subjects

Photoemission, Electron microscopy, Microstrip antennas, Nanostructured materials

Abstract

We report a numerical study, supported by photoemission electron microscopy (PEEM), of sub-micron planar optical antennas on transparent substrate. We find these antennas generate intricate near-field spatial field distributions with odd and even numbers of nodes. We show that the field distributions are primarily superpositions of planar surface plasmon polariton modes confined to the metal/substrate interface. The mode structure provides opportunities for coherent switching and optical control in sub-micron volumes.

Description

Copyright 2016 Optical Society of America

Locate the Document

Published as Open Access available from the publisher.

https://doi.org/10.1364/OE.24.018727

DOI

10.1364/OE.24.018727

Persistent Identifier

http://archives.pdx.edu/ds/psu/18653