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Proceedings Paper

Narrowband polarization-dependent fractal based plasmonic absorbers
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Paper Abstract

We propose a narrowband plasmonic absorber based on 3D fractal geometries. The geometric parameters of the proposed structure were optimized to exhibit strong absorption (above 90% for normal incidence) for transverse magnetic polarization in the region of electromagnetic spectrum used in optical communications (1.0 - 2.0 μm). The proposed structure demonstrated that the resonant peaks can be tunned with the geometric parameters of the structure. We also analyzed the dependence of thickness and effects of fractal rotation to analyze fabrication tolerance.

Paper Details

Date Published: 9 September 2019
PDF: 4 pages
Proc. SPIE 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, 110822C (9 September 2019); doi: 10.1117/12.2529249
Show Author Affiliations
Igor Leonardo Gomes de Souza, Univ. Federal da Bahia (Brazil)
Vitaly Felix Rodriguez-Esquerre, Univ. Federal da Bahia (Brazil)

Published in SPIE Proceedings Vol. 11082:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII
Din Ping Tsai; Takuo Tanaka, Editor(s)

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