Defect Modes in 3D Photonic Crystal for Microwave Applications

Shingo KANEHIRA; Soshu KIRIHARA; Yoshinari MIYAMOTO; Kazuaki SAKODA; Mitsuo WADA TAKEDA

doi:10.14852/jcersjsuppl.112.0.S765.0

Journal of the Ceramic Society of Japan, Supplement 112-1, PacRim5 Special Issue

Session ID : 10

DOI https://doi.org/10.14852/jcersjsuppl.112.0.S765.0

Conference information

Host: The Ceramic Society of Japan

Co-host: Iketani Science and Technology Foundation, International Ceramic Federation, Commemorative Organization for the Japan World Exposition '70, The American Ceramic Society, The Australasian Ceramic Society, The Chinese Ceramic Society, The Korean Ceramic Society, Joint Research Consortium of Synergy Ceramics/Fine Ceramics Research Association, Nanotechnology Researchers Network Center of Japan, The Special Coordination Funds for Promoting Science and Technology, Japan National Tourist Organization, Aichi Prefectural Government, CASIO SCIENCE PROMOTION FOUNDATION, DAIKO FOUNDATION, Nagoya Convention and Visitors Bureau, The Asahi Glass Foundation, The Kao Foundation For Arts And Sciences, The Murata Science Foundation, The Ogasawara Foundation for the Promotion of Science & Engineering, ASAHI GLASS CO., LTD. Research Center, CENTRAL GLASS CO., LTD., ELECTRIC GLASS INDUSTRY ASSOCIATION OF JAPAN (EGAJ), Hattori Company, Ltd., Hitachi Research Laboratory, Hitachi, Ltd., HOYA CORPORATION, INAX Corporation, ITOCHU CERATECH CORP., Japan Cement Association, KYOCERA Corporation, KYUSHU REFRACTORIES CO., LTD., MINO CERAMIC CO., LTD., Murata Manufacturing Co., Ltd., NGK INSULATORS LTD., NGK SPARK PLUG CO., LTD., NICHIAS Corporation, NIKKO COMPANY, Nippon Electric Glass Co., Ltd., Nippon Sheet Glass Co., Ltd., NORITAKE CO., LIMITED, Tokuyama Corporation, TOTO LTD.

Papers

Defect Modes in 3D Photonic Crystal for Microwave Applications

Shingo KANEHIRA, Soshu KIRIHARA, Yoshinari MIYAMOTO, Kazuaki SAKODA, Mitsuo WADA TAKEDA

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Keywords: Photonic crystal, Stereolithography, Diamond structure, Air cavity, Resonant mode

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Abstract

3D photonic crystals with a diamond structure, which are composed of the SiO₂ coated TiO₂ ceramic particles dispersed in an epoxy lattice, were fabricated by stereolithography. The diamond structure showed a photonic band gap in the 14.0-17.0 GHz range along Γ-X <100> direction. Lattice defects named `air cavity' were introduced into the diamond structure by removing a unit cell of diamond structure. Two types of air cavity, which were differed in the volume fraction, were also fabricated by stereolithography. The transmission of millimeter waves affected by multiple reflections at the air cavity was measured in the photonic band gap. When the volume fraction of the air cavity became larger, the resonant mode was shifted to the lower frequency range.

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