Excitation of defect modes from the extended photonicband-gap structures of 1D photonic lattices

doi:10.1088/1674-1056/19/1/014201

中国物理B ›› 2010, Vol. 19 ›› Issue (1): 14201-014201.doi: 10.1088/1674-1056/19/1/014201

Excitation of defect modes from the extended photonicband-gap structures of 1D photonic lattices

MuhammadAshfaqAhmad¹, 周可雅², 郭忠义², 刘树田²

(1)COMSATS Institute of Information Technology, Department of Physics, Lahore 54000, Pakistan; (2)Department of Physics, Harbin Institute of Technology, Harbin, 150001, China

收稿日期:2009-03-04 修回日期:2009-04-02 出版日期:2010-01-15 发布日期:2010-01-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10674038 and 10604042) and the National Basic Research Program of China (Grant No. 2006CB302901).

Excitation of defect modes from the extended photonic band-gap structures of 1D photonic lattices

Zhou Ke-Ya(周可雅)^a), Guo Zhong-Yi(郭忠义)^a), Muhammad Ashfaq Ahmad^b), and Liu Shu-Tian(刘树田)^a)†

^a Department of Physics, Harbin Institute of Technology, Harbin, 150001, China; ^b COMSATS Institute of Information Technology, Department of Physics, Lahore 54000, Pakistan

Received:2009-03-04 Revised:2009-04-02 Online:2010-01-15 Published:2010-01-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10674038 and 10604042) and the National Basic Research Program of China (Grant No. 2006CB302901).

摘要/Abstract

摘要： This paper stuides numerically the model equation in a one dimensional defective photonic lattice by modifying the potential function to a periodic function. It is found that defect modes (DMs) can be regarded as Bloch modes which are excited from the extended photonic band-gap structure at Bloch wave-numbers with k_x = 0. The DMs for both positive and negative defects are considered in this method.

Abstract: This paper stuides numerically the model equation in a one dimensional defective photonic lattice by modifying the potential function to a periodic function. It is found that defect modes (DMs) can be regarded as Bloch modes which are excited from the extended photonic band-gap structure at Bloch wave-numbers with k_x = 0. The DMs for both positive and negative defects are considered in this method.

Key words: optical-induced photonic lattices, photonic band-gaps, defect modes

中图分类号: (Photonic bandgap materials)

42.70.Qs

61.72.Bb (Theories and models of crystal defects) 63.20.Pw (Localized modes)

周可雅, 郭忠义, MuhammadAshfaqAhmad, 刘树田. Excitation of defect modes from the extended photonicband-gap structures of 1D photonic lattices[J]. 中国物理B, 2010, 19(1): 14201-014201.

Zhou Ke-Ya(周可雅), Guo Zhong-Yi(郭忠义), Muhammad Ashfaq Ahmad, and Liu Shu-Tian(刘树田). Excitation of defect modes from the extended photonic band-gap structures of 1D photonic lattices[J]. Chin. Phys. B, 2010, 19(1): 14201-014201.

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Excitation of defect modes from the extended photonicband-gap structures of 1D photonic lattices

Excitation of defect modes from the extended photonic band-gap structures of 1D photonic lattices

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