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Fabrication of Three‐Dimensional Micro Photonic Crystals of Resin‐Incorporating TiO 2 Particles and their Terahertz Wave Properties
Author(s) -
Chen Weiwu,
Kirihara Soshu,
Miyamoto Yoshinari
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01377.x
Subject(s) - stereolithography , terahertz radiation , materials science , photonic crystal , dielectric , plane wave expansion method , plane wave expansion , diamond , fabrication , band gap , photonics , optoelectronics , diamond cubic , lattice constant , optics , composite material , diffraction , medicine , alternative medicine , physics , pathology
Three‐dimensional (3D) photonic crystals with a diamond structure made from 40 vol% TiO 2 –acrylate dielectric composites were formed by means of a CAD/CAM micro‐stereolithography system. The lattice constant of the diamond unit cell was 500 μm and the forming accuracy was 10 μm. The photonic band gap in the Γ–X 〈100〉 direction measured by terahertz‐time‐domain spectroscopy appeared at 280–360 GHz, which agreed fairly well with the band gap calculated by the plane wave expansion method.