Author Affiliations
Abstract
1 School of Science, Changchun University of Science and Technology, Changchun 130022, China
2 Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, Changchun 130024, China
Aiming at the application requirements of information optics, this Letter proposed a perovskite quantum dot random lasing pumping method suitable for high-speed modulation. At the same time, the luminescence characteristics of perovskite quantum dot films under electron beam pumping conditions are analyzed, and the random lasing mechanism of electron beam pumping CsPbBr3 quantum dot films is revealed. Finally, it is confirmed that perovskite quantum dots are easy to realize random lasing under electron beam pumping conditions.
perovskite quantum dots electron beam random laser Chinese Optics Letters
2020, 18(1): 011403
当前传统点对点激光通信技术已经得到了长足进步, 为了探索在有限范围内实现局域激光广播的有效手段, 提出了一种适用于短距离水平链路激光广播的有效方法, 设计了相应的验证性广播通信系统, 并在光功率最优分配的角度上对激光广播进行了系统建模研究。首先, 从光功率衰减的角度对激光扩束理论模型和平行光幕理论模型进行了分析和对比, 揭示了平行光幕通信模型的光功率损失模型; 其次, 结合高斯光束光学成像变换理论模拟了平行光幕的远场场强分布情况, 通过一个领先的光学和照明设计软件, 揭示了光幕远场分布与传输距离的关系; 最后, 通过在不同信道环境下的野外通信实验验证了平行光幕理论模型的优越性与可行性。
激光广播 平行光幕 功率密度分布 laser broadcast parallel light curtain power density distribution 红外与激光工程
2018, 47(9): 0922001
