Enhanced Optical Antennas with Fractal Metasurface
Open Access
- 1 January 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics: Conference Series
- Vol. 1759 (1), 012024
- https://doi.org/10.1088/1742-6596/1759/1/012024
Abstract
Plasmonic is now a quickly expanding area of research for its versatile in a lot of areas with its perfect ability of confining EM waves and trapping light. Periodic metallic structures are excellent to manipulate the properties of the SPPs by modifying the geometry of the pattern. In this project, we demonstrate a kind of fractal metasurface based on Sierpinsky Nanocarpet to simulate a higher absorption peak and electric field enhancement. We experimentally change the dimension level, size, thickness and separation distance in order to study the geometry dependency of the photosensor. Compared to several different fractal metasurface, the optimized structure proposes an approximately 30% enhancement in light absorption compared to a commom log38 Sierpinsky Nanocarpet structure.Keywords
This publication has 2 references indexed in Scilit:
- Ultra-sensitive graphene photodetector with plasmonic structureApplied Physics Letters, 2016
- Surface plasmon photodetectorsPublished by SPIE-Intl Soc Optical Eng ,2013