Photonic crystal cavities and integrated optical devices  

作　　者：GAN Lin LI ZhiYuan 

机构地区：[1]Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences

出　　处：《Science China(Physics,Mechanics & Astronomy)》2015年第11期11-22,共12页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Fundamental Research Program of China(Grant Nos.2006CB921702,2007CB613205,2011CB922002 and 2012CB922103);the National Natural Science Foundation of China(Grant Nos.10525419,11375067,11275074,11374116 and 11204096)

摘　　要：This paper gives a brief introduction to our recent works on photonic crystal(Ph C) cavities and related integrated optical structures and devices. Theoretical background and numerical methods for simulation of Ph C cavities are first presented. Based on the theoretical basis, two relevant quantities, the cavity mode volume and the quality factor are discussed. Then the methods of fabrication and characterization of silicon Ph C slab cavities are introduced. Several types of Ph C cavities are presented, such as the usual L3 missing-hole cavity, the new concept waveguide-like parallel-hetero cavity, and the low-index nanobeam cavity. The advantages and disadvantages of each type of cavity are discussed. This will help the readers to decide which type of Ph C cavities to use in particular applications. Furthermore, several integrated optical devices based on Ph C cavities, such as optical filters, channel-drop filters, optical switches, and optical logic gates are described in both the working principle and operation characteristics. These devices designed and realized in our group demonstrate the wide range of applications of Ph C cavities and offer possible solutions to some integrated optical problems.This paper gives a brief introduction to our recent works on photonic crystal （PhC） cavities and related integrated optical structures and devices. Theoretical background and numerical methods for simulation of PhC cavities are first presented. Based on the theoretical basis, two relevant quantities, the cavity mode volume and the quality factor are discussed. Then the methods of fabrication and characterization of silicon PhC slab cavities are introduced. Several types of PhC cavities are pre- sented, such as the usual L3 missing-hole cavity, the new concept waveguide-like parallel-hetero cavity, and the low-index nanobeam cavity. The advantages and disadvantages of each type of cavity are discussed. This will help the readers to decide which type of PhC cavities to use in particular applications. Furthermore, several integrated optical devices based on PhC cavi- ties, such as optical filters, channel-drop filters, optical switches, and optical logic gates are described in both the working principle and operation characteristics. These devices designed and realized in our group demonstrate the wide range of appli- cations of PhC cavities and offer possible solutions to some integrated optical problems.

关 键 词：photonic crystal cavities optical filter optical switch optical logic gates 

分 类 号：O734[理学—晶体学]