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.
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