Surface-plasmon-enhanced transmission through metallic film perforated with fractal-featured aperture array

A fractal-featured metallic thin film with Sierpinski Carpet pattern is fabricated on silicon wafer by microfabrication techniques. Transmission infrared spectroscopy indicates that there exists extraordinary high transmission at specific wavelengths, which can be ascribed to the effect of surface p...

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Bibliographic Details
Published in:Applied physics letters 2007-06, Vol.90 (25), p.251914-251914-3
Main Authors: Bao, Yong-Jun, Zhang, Bo, Wu, Zhe, Si, Jian-Wen, Wang, Mu, Peng, Ru-Wen, Lu, Xiang, Shao, Jun, Li, Zhi-feng, Hao, Xi-Ping, Ming, Nai-Ben
Format: Article
Language:English
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Summary:A fractal-featured metallic thin film with Sierpinski Carpet pattern is fabricated on silicon wafer by microfabrication techniques. Transmission infrared spectroscopy indicates that there exists extraordinary high transmission at specific wavelengths, which can be ascribed to the effect of surface plasmon resonance, and are determined by hierarchy of apertures of different sizes in the fractal structure. This patterned film provides a unique system to achieve enhanced transmission simultaneously at different selected frequencies of electromagnetic wave.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2750528