Liu Lijuan, Liu Minzhe, Wang Qidong, Hu Hanmin, Zhang Feng, Kong Xiaobo
College of Electrical and Information Engineering, Quzhou University, Quzhou, 324000, China.
School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, China.
Sci Rep. 2024 Aug 1;14(1):17790. doi: 10.1038/s41598-024-68896-5.
A specific optimized configuration for low threshold organic semiconductor laser based on a holographic polymer dispersed liquid crystal (HPDLC) transmission grating was demonstrated. Here the organic semiconductor films and phase separated liquid crystal (LC) molecules were oriented along the direction of the HPDLC grating grooves. The influence of the organic semiconductor chain orientation and the excitation polarization on the optical properties of the materials has been investigated. Especially, when polymer chain orientation, LC molecules and pump light polarization are consistent with the direction of the grating grooves, the performance of the outgoing laser is greatly improved. Up to 9.78% conversion efficiency with a threshold lower to 0.12 μJ/pulse can be obtained, indicating their potential for high-performance organic optoelectronics.
展示了一种基于全息聚合物分散液晶（HPDLC）透射光栅的低阈值有机半导体激光器的特定优化配置。在此，有机半导体薄膜和相分离液晶（LC）分子沿HPDLC光栅沟槽方向取向。研究了有机半导体链取向和激发极化对材料光学性质的影响。特别是，当聚合物链取向、LC分子和泵浦光极化与光栅沟槽方向一致时，出射激光的性能得到极大改善。可以获得高达9.78%的转换效率，阈值低至0.12 μJ/脉冲，表明它们在高性能有机光电子学方面的潜力。
