A Novel Woodpile Three-Dimensional Terahertz Photonic Crystal  

作　　者：刘欢 姚建铨 郑芳华 徐德刚 王鹏 

机构地区：[1]Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072 [2]Key Laboratory of Optoelectric Information Science and Technology (Ministry of Education) Tianjin University, Tianjin 300072

出　　处：《Chinese Physics Letters》2007年第5期1290-1293,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10474071 and the Specialized Research Fund for the Doctoral Programme of Higher Education of China under Grant No 20040056010.

摘　　要：A novel woodpile lattice structure is proposed. Based on plane wave expansion （PWE） method, the complete photonic band gaps （PBGs） of the novel woodpile three^dimensional （3D） terahertz （THz） photonic crystal （PC） with a decreasing symmetry relative to a face-centred-tetragonal （fct） symmetry are optimized by varying some structural parameters and the highest band gap ratio can reach 27.61%. Compared to the traditional woodpile lattice, the novel woodpile lattice has a wider range of the filling ratios to gain high quality PBGs, which provides greater convenience for the manufacturing process. The novel woodpile 3D PC will be very promising for materials of THz Junctional components.A novel woodpile lattice structure is proposed. Based on plane wave expansion （PWE） method, the complete photonic band gaps （PBGs） of the novel woodpile three^dimensional （3D） terahertz （THz） photonic crystal （PC） with a decreasing symmetry relative to a face-centred-tetragonal （fct） symmetry are optimized by varying some structural parameters and the highest band gap ratio can reach 27.61%. Compared to the traditional woodpile lattice, the novel woodpile lattice has a wider range of the filling ratios to gain high quality PBGs, which provides greater convenience for the manufacturing process. The novel woodpile 3D PC will be very promising for materials of THz Junctional components.

关 键 词：WAVE-GUIDES BAND-GAPS FREQUENCIES FABRICATION LASER 

分 类 号：O76[理学—晶体学]