Directional emission of light from a nano-optical Yagi-Uda antenna
Terukazu Kosako, Holger F. Hofmann, and Yutaka Kadoya
TL;DR
This paper demonstrates that nano-optical Yagi-Uda antennas made of gold nanorods can efficiently control the directionality of light emission at the nanoscale, mimicking RF antenna behavior.
Contribution
It provides the first experimental demonstration of directional light emission using a nano-optical Yagi-Uda antenna with gold nanorods.
Findings
Achieved directional emission of light from nano-antennas.
Showed that nano-optical antennas can control light emission spatially.
Validated the analogy between RF and optical antenna principles.
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.