一维边发射有机半导体光子晶体激光器设计  

Design of One-Dimensional Edge-Emitting Organic Semiconductor Photonic Crystal Lasers

作　　者：李长伟[1] 陈笑[1] 蔡园园 王晓青 冯帅[1] 王义全[1] Li Changwei;Chen Xiao;Cai Yuanyuan;Wang Xiaoqing;Feng Shuai;Wang Yiquan(College of Science,Minzu University of China,Beijing 100081,China;College of Science,Beijing Jiaotong University,Beifing 100044,China)

机构地区：[1]中央民族大学理学院,北京100081 [2]北京交通大学理学院,北京100044

出　　处：《光学学报》2018年第9期222-229,共8页Acta Optica Sinica

基　　金：国家自然科学基金(61675238;61775244)

摘　　要：基于有机共轭聚合物聚[2-甲氧基-5-(2-乙基己氧基)-1,4-苯乙炔](MEH-PPV)的脊形波导,利用光子晶体特殊的光调制特性,模拟设计了一维边发射有机光子晶体激光器。利用光子晶体的带隙结构和带边效应构建了由光子晶体全反镜和透反镜形成的谐振腔,在谐振腔内的脊形波导上引入一维缺陷型光子晶体,利用光子晶体缺陷模特性抑制了多纵模竞争,并在此基础上分析了复合结构所导致的边界模效应,得出此类非金属微腔激光器腔长设计的经验公式。模拟结果表明该一维边发射有机光子晶体激光器可实现中心波长为588nm、半峰全宽为0.131nm的单纵模激光输出。A one-dimensional（1 D）edge-emitting photonic crystal laser is designed based on the ridge waveguide of organic conjugated polymer poly[2-methoxy-5-（2-ethylhexyloxy）phenylenevinylene-1,4-diyl]（MEH-PPV）and the special optical modulation characteristics of photonic crystals.The band gap structure and the band edge effect of photonic crystal are employed to construct the resonator formed by photonic crystal total mirror and partial transmission mirror.1 Dphotonic crystal defect component is introduced on the ridged waveguide in the resonator and suppresses effectively the mode competition based on the property of photonic crystal defect-mode.The boundary-mode effect caused by composite structure is analyzed,and empirical formula for the cavity length of this kind of non-metallic microcavity laser is obtained.The simulating result shows that a single longitudinal mode laser output with the central wavelength of 588 nm and the full width at half maximum of 0.131 nm is achieved in 1 D edge-emitting organic photonic crystal laser.

关 键 词：激光器 光子晶体激光器 边发射激光器 时域有限差分法 有机半导体 

分 类 号：TN383.2[电子电信—物理电子学]