基于不同谐振腔结构的有机微腔激光器的研究进展(特邀)  

Advances in Organic Microcavity Lasers Based on Different Resonant Cavity Structures(Invited)

作　　者：朱金龙 付红兵 廖清 ZHU Jinlong;FU Hongbing;LIAO Qing(Beijing Key Laboratory for Optical Materials and Photonic Devices,Department of Chemistry,Capital Normal University,Beijing 100048,China)

机构地区：[1]首都师范大学化学系光功能材料与器件北京市重点实验室,北京100048

出　　处：《光子学报》2024年第5期80-98,共19页Acta Photonica Sinica

基　　金：国家自然科学基金(Nos.22150005,22090022,22275125);国家重点研发计划(Nos.2022YFA1204402,2018YFA0704805,2018YFA0704802);北京市自然科学基金(No.KZ202110028043);北京市教委研发计划项目(Nos.KM202210028016,BPHR202203119);北京市先进成像理论与技术创新中心资助。

摘　　要：有机微腔激光器利用有机增益材料和微腔结构的优点,在先进的光学领域中取得了巨大的发展,具有广泛的应用前景。有机微腔激光器通过对增益材料和谐振腔的调控,实现对激光的频率、横向分布特性及模式选择等进行选择性输出。本文对近年来报道的有机增益材料和光学谐振腔的种类及特性进行了归纳,总结了具有不同谐振腔结构的有机微腔激光的研究进展,为进一步拓展有机微腔激光器提供借鉴和启发。Since the invention of the first ruby laser in 1960,after more than 60 years of research and development,laser has been widely used in various industries due to its excellent characteristics such as high directionality,high brightness,and monochromaticity.Over the years,lasers have continuously evolved and innovated to meet market demands.While there are various laser shapes and pump sources available in the market,covering different output powers,wavelengths,and pulse durations,the core components of all lasers consist of the laser gain medium,pump source,and optical resonator cavity.Firstly,the conditions for the generation of organic lasers and the energy level system are introduced.Population inversion is crucial to overcome the competition between stimulated absorption and stimulated radiation.Achieving population inversion allows excited radiation to dominate,enhancing light intensity,which is the fundamental principle of laser amplification.However,in practice,not all luminescent materials can achieve the population inversion.To achieve the population inversion,a suitable energy level system is necessary.The four-level system is more effective in achieving population inversion compared to the three-level system.Next,the paper discusses organic semiconductor gain materials,which are the foundation of organic lasers.These materials enable population inversion and light amplification through stimulated emission.Organic semiconductor lasers stand out from others due to their use of organic materials as the laser gain medium.Compared with inorganic materials,organic materials offer high tunability in photoluminescence spectra,thanks to their abundant excited-state photophysical and photochemical processes.Additionally,the weak interaction between organic molecules allows for flexible control of crystal geometry and mass crystal fabrication.Meanwhile,the complex excited-state energy level system of organic materials is inherently more favourable for constructing a four-level system for the population inversion.T

关 键 词：有机激光 增益介质 晶体 谐振腔 微腔结构 

分 类 号：O64[理学—物理化学]