2012 Fiscal Year Final Research Report

Study of Optical Switches Operating at Ultra-Low Voltages Using Magneto-Optic Photonic Crystals

Research Project

Project/Area Number	22656084
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Electron device/Electronic equipment
Research Institution	Hiroshima University
Principal Investigator	YOKOYAMA Shin 広島大学, ナノデバイス・バイオ融合科学研究所, 教授 (80144880)
Co-Investigator(Renkei-kenkyūsha)	AMEMIYA Yoshiteru 広島大学, ナノデバイス・バイオ融合科学研究所, 特任助教 (20448260)
Project Period (FY)	2010 – 2012
Keywords	フォトニック結晶 / 磁気光学効果 / ガドリニウムガリウムガーネット / シリコンリング光共振器 / 電子ビームリソグラフィー
Research Abstract	Firstly the fabrication technology ofphotonic crystal resonator was developed using silicon (Si) wafer. And the quality factor of 75,000 was obtained at a resonation wavelength of 1502.9 nm. Next, the fabrication technology of photonic crystal using magneto-optic material, gadolinium gallium garnet (Gd_3G_a5O_12:GGG), was developed by embedding the GGG substrate in the Si wafer. Concerning the magneto-optic switches, the GGG particles are absorbed on the Si ring resonator and the resonation-wavelength shift due to the magnetic field was observed.

(4 results)