Unidirectional scattering and emission of light mediated by a single-element nanoantenna

Author

Verellen, Niels ; Vercruysse, Dries ; Sonnefraud, Yannick ; Xuezhi Zheng ; Di Martino, Gerardo ; Vandenbosch, Guy A. E. ; Lagae, Liesbet ; Moshchalkov, Victor V. ; Maier, Stefan A. ; Van Dorpe, Pol

Author_Institution

Dept. of Phys., KU Leuven, Leuven, Belgium

fYear

2014

fDate

8-13 June 2014

Firstpage

1

Lastpage

2

Abstract

A V-shaped single-element metallic nanoantenna is found to enable unidirectional scattering of light. We experimentally and by means of FDTD simulations show unidirectional scattering of a plane wave and unidirectional emission from photoluminescent molecules coupled to the antenna. An eigenmode analysis reveals the physical origin of this effect and elegantly explains how the direction of the scattered light is reversed depending the excitation type.

Keywords

eigenvalues and eigenfunctions; finite difference time-domain analysis; light scattering; metamaterial antennas; nanophotonics; photoluminescence; FDTD simulations; V-shaped single-element metallic nanoantenna; eigenmode analysis; excitation type; light emission; photoluminescent molecules; plane wave; scattered light; single-element nanoantenna; unidirectional scattering; Dipole antennas; Directive antennas; Interference; Optical surface waves; Plasmons; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics (CLEO), 2014 Conference on

Conference_Location

San Jose, CA

Type

conf

Filename

6989165