IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Special Section on Photonic Devices using Nanofabrication Technology and Their Applications
Color Filter Based on Surface Plasmon Resonance Utilizing Sub-Micron Periodic Hole Array in Aluminum Thin Film
Naoki IKEDA, Yoshimasa SUGIMOTO, Masayuki OCHIAI, Daijyu TSUYA, Yasuo KOIDE, Daisuke INOUE, Atsushi MIURA, Tsuyoshi NOMURA, Hisayoshi FUJIKAWA, Kazuo SATO
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Keywords: surface plasmon resonance, aluminum, color filter, electron beam lithography, reactive ion etching
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2012 Volume E95.C Issue 2 Pages 251-254

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Abstract

We investigated optical transmission characteristics of aluminum thin films with periodic hole arrays in sub-wavelength. We divided white light into several color spectra using a color filter based on the surface plasmon resonance (SPR) utilizing aluminum showing high plasma frequency. By optimizing a hole-array period, hole shape, polarization and index difference of two surface, transmittance of 30% and full-width at half-maximum of around 100nm were achieved.

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© 2012 The Institute of Electronics, Information and Communication Engineers
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