基于Alq∶DCJTI薄膜的光泵浦650 nm微腔激光

设计研制了以分布式布拉格反射镜为腔镜、以主客体掺杂的红光发光材料Alq∶DCJTI为增益介质的有机微腔结构。通过传输矩阵法对腔内驻波光场进行了模拟, 确定了合理的微腔结构。在紫外脉冲激光的泵浦下研究了微腔的激光性能。该微腔激光器的输出波长位于650 nm, 观察到了明显的激光现象, 其中阈值强度约为110 W·cm-2, 阈值前后的FWHM从4.7 nm窄化到3.2 nm。

Abstract

Organic microcavity structures were designed and fabricated with distributed Bragg reflector as the mirror and Alq∶DCJTI host-guest doping system as the gain medium. The standing wave field within microcavity was simulated by using the transfer matrix method, and a suitable microcavity structure was determined. The lasing properties of the microcavity laser were studied by a UV pulse laser. The output wavelength of the microcavity laser is 650 nm. An obvious lasing behavior was observed with a threshold intensity of 110 W·cm-2. FWHM was narrowed from 4.7 to 3.2 nm before and after the threshold.

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张镭, 李颜涛, 林杰, 刘星元. 基于Alq∶DCJTI薄膜的光泵浦650 nm微腔激光[J]. 发光学报, 2015, 36(9): 1059. ZHANG Lei, LI Yan-tao, LIN Jie, LIU Xing-yuan. Microcavity Lasing at 650 nm from Alq∶DCJTI Film Under Optical Pumping[J]. Chinese Journal of Luminescence, 2015, 36(9): 1059.

基于Alq∶DCJTI薄膜的光泵浦650 nm微腔激光

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