光学学报, 2018, 38 (9): 0914001, 网络出版: 2019-05-09
一维边发射有机半导体光子晶体激光器设计 下载: 872次
Design of One-Dimensional Edge-Emitting Organic Semiconductor Photonic Crystal Lasers
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 lasers photonic crystal lasers edge-emitting lasers finite different time domain method organic semiconductor
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588 nm、半峰全宽为0.131 nm的单纵模激光输出。
Abstract
A one-dimensional (1D) 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. 1D photonic 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 1D edge-emitting organic photonic crystal laser.
李长伟, 陈笑, 蔡园园, 王晓青, 冯帅, 王义全. 一维边发射有机半导体光子晶体激光器设计[J]. 光学学报, 2018, 38(9): 0914001. Changwei Li, Xiao Chen, Yuanyuan Cai, Xiaoqing Wang, Shuai Feng, Yiquan Wang. Design of One-Dimensional Edge-Emitting Organic Semiconductor Photonic Crystal Lasers[J]. Acta Optica Sinica, 2018, 38(9): 0914001.