金属嵌入对三角晶格耦合腔光波导群速度的影响  

Influence on the Group Velocities of Triangular Lattice Coupled-resonator Optical Waveguides by Inserting Metal Wire

作　　者：屈道宽[1] 张建心[2,3] 冯帅[3] 王义全[3] 李英骏[1] 

机构地区：[1]中国矿业大学理学院,北京100083 [2]山东师范大学物理与电子科学学院,济南250014 [3]中央民族大学理学院,北京100081

出　　处：《光子学报》2010年第4期648-652,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(10674185;10904176);国家重点基础研究发展计划(2006CB921702;2007CB310403)资助

摘　　要：利用多重散射法和时域有限差分法理论,研究了二维三角晶格光子晶体耦合腔光波导的传输特性.理论模拟结果表明,在耦合腔光波导中嵌入半径很小的理想金属丝,能有效地减弱相邻点缺陷之间的耦合强度,实现了比真空中光速小三个数量级的群速度.The transmission characteristics of the coupled-resonator optical waveguides based on the twodimensional triangular-lattice photonic crystal are studied by the multiple-scattering methods and the finitedifference time-domain method. Through selective inserting the rods with different radius between two adjacent microcavities,tbe coupling intensity between the two adjacent point defects is weaken, and the group velocity can be further reduced by three orders of magnitude.

关 键 词：二维光子晶体 耦合腔波导 时域有限差分方法 群速度 

分 类 号：O436[机械工程—光学工程]