摘要
可见区和近红外区透明的光学材料的折射率较低 ,导致宽的全角反射带等特殊结构设计和制作难度大。为获得单一角度出射的窄频带缺陷模。本文在双微腔耦合的异质结基础上 ,加上低频反射补偿周期结构构成三异质结 ,此三异质结能够实现宽的全角高反带 ,同时使双微腔耦合形成的窄频率锐角度的透射峰不受影响 ,从而实现在 0°到 90°范围内只有某特定的窄频带在特定角度范围内才能透射。
Combining two one-dimensional defective photonic crystals(PCs) can form a photonic heterostructure with narrow frequency and sharp angular defect mode in the wavelength longer than 1 μm. In this paper,a photonic heterostructure with two one-dimensional defective PCs and a low frequency compensation period structure is proposed.It overcomes the transmission in low frequency due to low refractive index in wavelength shorter than 1 μm.In this photonic heterostructure possess both narrow frequency pass band and sharp angular pass breadth in the visible light and near-infrared region.The key is to design the two sub-PCs to make the frequency of their defect modes the same at one incident angle and different at all other incident angles,and to design a low frequency compensation period structure.
出处
《激光杂志》
CAS
CSCD
北大核心
2005年第1期16-17,20,共3页
Laser Journal
基金
国家自然科学基金 (10 2 7410 8)
863 (2 0 0 3AA3 110 2 2 )
973(2 0 0 3CB3 14 90 1)
广东省自然科学基金资助项目。
关键词
光子晶体
异质结
缺陷模
全角高反带
光学滤波器
光学薄膜
光通信
抗干扰
photonic crystal,heterostructure,omnidirectional reflection,optical filter,optical thin film,light communication,antijam.
