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

Saeed, A. , Panaro, S., Zaccaria, R. P., Raja, W., Liberale, C., Dipalo, M., Messina, G.C., Wang, H., De Angelis, F. and Toma, A. (2015) Stacked optical antennas for plasmon propagation in a 5 nm-confined cavity. Scientific Reports, 5, 11237. (doi: 10.1038/srep11237) (PMID:26057661) (PMCID:PMC4460891)

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 5 nm 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.

• Item Type: Articles
• Additional Information: The research leading to these results has been partially funded from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement n. [616213], CoG: Neuro-Plasmonics.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Saeed, Dr Anwer
• Authors: Saeed, A., Panaro, S., Zaccaria, R. P., Raja, W., Liberale, C., Dipalo, M., Messina, G.C., Wang, H., De Angelis, F., and Toma, A.
• College/School: College of Science and Engineering > School of Engineering > Biomedical Engineering
• Journal Name: Scientific Reports
• Publisher: Nature Publishing Group
• ISSN: 2045-2322
• ISSN (Online): 2045-2322
• Published Online: 09 June 2015
• Copyright Holders: Copyright © 2016 The Authors
• First Published: First published in Scientific Reports 5:11237
• Publisher Policy: Reproduced under a Creative Commons License