High-Q Microcavity in Two-Dimensional Diamond Photonic Crystal Thin Films Realized via a Mode Gap  

作　　者：周长柱 熊志刚 李志远 

机构地区：[1]Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190

出　　处：《Chinese Physics Letters》2009年第9期133-136,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant Nos 2006CB921702 and 2007CB613205, the National Natural Science Foundation of China under Grant No 10525419.

摘　　要：We design high quality factor （Q） photonic crystal microcavities in diamond films for applications in quantum information based on color centers. A photonic microcavity made from a waveguide heterostructure with a mode gap is demonstrated to have a high Q factor over 1051400 and a modal volume V of 2.24 cubic wavelengths by modifying the mode gap width and the tapered region geometry. Besides its ultrahigh Q factor, the waveguide-like geometry of the cavity allows for easy on-chip transportation of quantum information between different cavities.We design high quality factor （Q） photonic crystal microcavities in diamond films for applications in quantum information based on color centers. A photonic microcavity made from a waveguide heterostructure with a mode gap is demonstrated to have a high Q factor over 1051400 and a modal volume V of 2.24 cubic wavelengths by modifying the mode gap width and the tapered region geometry. Besides its ultrahigh Q factor, the waveguide-like geometry of the cavity allows for easy on-chip transportation of quantum information between different cavities.

关 键 词：sea surface nonliear interaction numerical method 

分 类 号：TN201[电子电信—物理电子学] TN304.18