Directional emission of light from a nano-optical Yagi-Uda antenna
Mesoscale and Nanoscale Physics
2010-05-06 v1 Materials Science
Quantum Physics
Abstract
The plasmon resonance of metal nanoparticles can enhance and direct light from optical emitters in much the same way that radio frequency (RF) antennas enhance and direct the emission from electrical circuits. In the RF regime, a typical antenna design for high directivity is the Yagi-Uda antenna, which basically consists of a one-dimensional array of antenna elements driven by a single feed element. Here, we present the experimental demonstration of directional light emission from a nano-optical Yagi-Uda antenna composed of an array of appropriately tuned gold nanorods. Our results indicate that nano-optical antenna arrays are a simple but efficient tool for the spatial control of light emission.
Keywords
Cite
@article{arxiv.0910.2291,
title = {Directional emission of light from a nano-optical Yagi-Uda antenna},
author = {Terukazu Kosako and Holger F. Hofmann and Yutaka Kadoya},
journal= {arXiv preprint arXiv:0910.2291},
year = {2010}
}
Comments
4 pages, including 4 figures