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

首先研究了利用硅片制备光子晶体谐振器的工艺。在1502.9 nm谐振波长处，质量因子为75000。然后，将磁光材料钆镓石榴石（Gd_3G_a5O_12:GGG）衬底嵌入硅片中，开发了以GGG为衬底的光子晶体制备技术。在磁光开关中，GGG粒子被硅环谐振器吸收，并观察到磁场引起的谐振波长偏移。

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.