Jpn. J. Appl. Phys. 40 (2001) pp. L1217-L1219 |Next Article| |Table of Contents|
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Letter
Photonic Band Gap in Naturally Occurring Ordered Anodic Porous Alumina
Hideki Masuda,
Masayuki Ohya,
Hidetaka Asoh and
Kazuyuki Nishio
Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397, Japan
(Received May 28, 2001; accepted for publication October 1, 2001)
The two-dimensional (2D) photonic band gap was observed in naturally formed anodic porous alumina. Anodizing of Al under appropriate conditions yielded the anodic porous alumina which had an ordered air-hole array with a multidomain triangular lattice. The transmission spectra of the multidomain triangular air-hole lattice of the anodic porous alumina showed a clear dip in transmission that corresponded to the 2D photonic band gap. The band gap properties of the polycrystalline-type air-hole lattice could be interpreted as being the sum of those for the single-crystalline-type air-hole arrays of anodic porous alumina prepared by an artificial process.
URL:
http://jjap.jsap.jp/link?JJAP/40/L1217/
DOI: 10.1143/JJAP.40.L1217
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