Optical Filters Based on Nano-Sized Hole and Slit Patterns in Aluminum Films

Daisuke INOUE  Atsushi MIURA  Tsuyoshi NOMURA  Hisayoshi FUJIKAWA  Kazuo SATO  Naoki IKEDA  Daiju TSUYA  Yoshimasa SUGIMOTO  Yasuo KOIDE  

IEICE TRANSACTIONS on Electronics   Vol.E99-C   No.3   pp.358-364
Publication Date: 2016/03/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E99.C.358
Type of Manuscript: Special Section PAPER (Special Section on Progress towards System Nanotechnology)
surface plasmon,  nano hole,  nano slit,  aluminum,  extraordinary transmission,  

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The optical properties of arrays of nanoholes and nanoslits in Al films were investigated both numerically and experimentally. The choice of Al was based on its low cost and ease of processing, in addition to the fact that it has a higher plasma frequency than gold or silver, leading to lower optical losses at wavelengths of 400 to 500nm.