2D Photonic Crystals Using Anodic Porous Alumina(<Special Issue>Photonic Crystals)

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  • Masuda Hideki
    Department of Applied Chemistry, Tokyo Metropolitan University
  • Asoh Hidetaka
    Department of Applied Chemistry, Tokyo Metropolitan University

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Other Title
  • 陽極酸化ポーラスアルミナを用いた二次元フォトニック結晶(<小特集>フォトニック結晶)
  • 陽極酸化ポーラスアルミナを用いた二次元フォトニック結晶
  • ヨウキョク サンカ ポーラスアルミナ オ モチイタ 2ジゲン フォトニック ケッショウ

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Abstract

Optical properties of two-dimensional (2D) material, with a spatially periodic index of refraction, have recently attracted growing interest because of the potential for the fabrication of novel optoelectronic deyices. We describe here the fabrication of 2D photonic band-gap structures for the visible or near infrared wavelength region using ideally ordered anodic porous alumina. An ideally ordered anodic porous alumina, which consists of an ordered triangular array of air cylinders with high aspect ratios in alumina matrix, is formed using anodization of the pretextured Al. The transmission properties of the obtained structure showed a stop band in the spectrum which corresponds to the band gap in the 2D photonic crystals. Photonic bandgap structures based on the anodic porous alumina are useful for application in several fields which require 2D photonic crystals with high aspect ratios, such as the measurement of the excited lifetime of molecules, tunable filters and highly efficient lasers.

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