Narrow Band Longitude Mode Selector of Laser Based on Conjugated Photonic Crystals  

作　　者：王兆娜 刘大禾 

机构地区：[1]Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing 100875

出　　处：《Chinese Physics Letters》2009年第10期106-109,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 Nos 60277014 and 60677006, and the Youth Foundation of Beijing Normal University.

摘　　要：Properties of transmission spectra of multi-layers consisting of two conjugated photonic crystals are investigated. It is found that, in the case of a small amount of time, the mode density at the interface mode is much larger than that at the band edge. Under certain conditions, the transmission can reach the unity, and the bandwidth can reach the order of pieometer. Based on this property, a longitude mode selector of laser consisting of two conjugated photonic crystals made with gain materials is suggested. The effects of the impedance contrast of materials and the refractive index of the environment on the bandwidth are studied.Properties of transmission spectra of multi-layers consisting of two conjugated photonic crystals are investigated. It is found that, in the case of a small amount of time, the mode density at the interface mode is much larger than that at the band edge. Under certain conditions, the transmission can reach the unity, and the bandwidth can reach the order of pieometer. Based on this property, a longitude mode selector of laser consisting of two conjugated photonic crystals made with gain materials is suggested. The effects of the impedance contrast of materials and the refractive index of the environment on the bandwidth are studied.

关 键 词：sea surface nonliear interaction numerical method 

分 类 号：O734[理学—晶体学] O152.1