Stacked optical antennas for plasmon propagation in a 5 nm-confined cavity

A. Saeed, S. Panaro, R. Proietti Zaccaria, W. Raja, Carlo Liberale, M. Dipalo, G. C. Messina, H. Wang, F. De Angelis, A. Toma

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The sub-wavelength concentration and propagation of electromagnetic energy are two complementary aspects of plasmonics that are not necessarily co-present in a single nanosystem. Here we exploit the strong nanofocusing properties of stacked optical antennas in order to highly concentrate the electromagnetic energy into a 5nm metal-insulator-metal (MIM) cavity and convert free radiation into guided modes. The proposed nano-architecture combines the concentration properties of optical nanoantennas with the propagation capability of MIM systems, paving the way to highly miniaturized on-chip plasmonic waveguiding. © 2015, Nature Publishing Group. All rights reserved.
Original languageEnglish (US)
JournalScientific Reports
Volume5
Issue number1
DOIs
StatePublished - Jun 9 2015

ASJC Scopus subject areas

  • General

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