低阈值钙钛矿光子晶体激光器  

Perovskite Photonic Crystal Laser with Low Threshold

作　　者：周博林 李国辉 吴建红 温荣 皮慧慧 郝玉英 崔艳霞 Zhou Bolin;Li Guohui;Wu Jianhong;Wen Rong;Pi Huihui;Hao Yuying;Cui Yanxia(College of Physics and Optoelectronics,Tai Yuan University of Technology,Taiyuan,Shanxi 030024,China)

机构地区：[1]太原理工大学物理与光电工程学院,山西太原030024

出　　处：《激光与光电子学进展》2022年第5期39-54,共16页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61922060,61775156);山西省自然科学基金(201701D211002,201701D221029)。

摘　　要：光子晶体激光器利用禁带效应与光局域效应,可以进一步缩小光学模式体积及降低激光阈值,以满足器件微型化和光电子集成的需求,在发光二极管、传感器等方面有广阔的应用前景,所以倍受关注。激光阈值被定义为实现激光振荡的最低能量密度,是实现激光器件集成应用的重要指标。钙钛矿材料具有高光学增益的特性,是实现低阈值激光器的理想增益材料,将其与光子晶体激光器结合,可以实现低阈值甚至无阈值泵浦激光。本文基于谐振腔和增益介质,简述了影响激光器阈值的两大因素(增益与损耗),并提出了降低激光阈值的方法。然后将光子晶体激光器按照光子晶体维数及结构分类,综述钙钛矿光子晶体激光器在低阈值方面的研究进展。最后展望了钙钛矿光子晶体激光器的发展前景,以期实现低阈值甚至零阈值、高功率、高质量激光输出,促进半导体激光器的集成与多领域应用。Photonic crystal lasers can further reduce the optical mode volume and the lasing threshold using the band gap effect and localized effect,which can meet the needs of device miniaturization and optoelectronic integration.Photonic crystal lasers have broad application prospects in light-emitting diodes,sensors and other aspects,so they have attracted much attention.The lasing threshold is defined as the minimum energy density of lasing oscillation and is an important index for the integrated application of laser devices.Perovskite material has the characteristics of high optical gain,which makes it an ideal gain material for realizing low threshold laser.When combined with photonic crystal laser,low threshold or no threshold pumping lasing can be realized.Based on the resonator and gain medium,the two factors(gain and loss),which are the two main factors affecting the threshold of the laser,are briefly described in terms of the resonant cavity and the gain medium,and some methods to reduce the threshold is proposed.Then,photonic crystal lasers are classified according to the dimension and structure of photonic crystals.In addition,the research progress of low threshold of perovskite photonic crystal lasers is reviewed.Finally,the development prospect of perovskite photonic crystal lasers is prospected,in order to achieve low threshold or even zero threshold,high power,high quality lasing output,and promote the integration and multi-field application of semiconductor lasers.

关 键 词：激光光学 光子晶体 激光器 激光阈值 钙钛矿 

分 类 号：O436[机械工程—光学工程]