Abstract

In this Letter, plasmonic sectoral horn nanoantennas working at near-infrared wavelength (1550 nm) have been investigated. We demonstrate that, although there are certain differences between the plasmonic and classical radiofrequency (RF) sectoral horn antennas, the plasmonic horns still possess a number of attractive features, like their RF counterparts, such as tunable high directivities, simplicity in fabrication, and ease of coupling to waveguides. As a specific application, we further show how to exploit these findings to optimize an optical wireless nanolink using the proposed horn nanoantennas, and obtain a 60-fold increase in the received power compared with the situation of matched dipole nanoantennas.

© 2014 Optical Society of America

Beam steering and impedance matching of plasmonic horn nanoantennas

Adeel Afridi and Şükrü Ekin Kocabaş
Opt. Express 24(22) 25647-25652 (2016)

Nanofocusing in circular sector-like nanoantennas

Vladimir A. Zenin, Anders Pors, Zhanghua Han, René L. Eriksen, Valentyn S. Volkov, and Sergey I. Bozhevolnyi
Opt. Express 22(9) 10341-10350 (2014)

Efficient and wideband horn nanoantenna

D. Ramaccia, F. Bilotti, A. Toscano, and A. Massaro
Opt. Lett. 36(10) 1743-1745 (2011)

Broadband directional rhombic nanoantenna for optical wireless communications systems

Mohamed Elsaid, Korany R. Mahmoud, Mohamed Farhat O. Hameed, S. S. A. Obayya, and Mohamed Hussein
J. Opt. Soc. Am. B 37(4) 1183-1189 (2020)

Plasmonic spiderweb nanoantenna surface for broadband hotspot generation

Rüştü Umut Tok and Kürşat Şendur
Opt. Lett. 39(24) 6977-6980 (2014)