基于液晶/聚合物光栅选频的高效率有机半导体激光器

刘明欢; 李大禹; 姚丽双; 刘永刚; 彭增辉; 曹召良; 宣丽

doi:10.3788/YJYXS20173211.0853

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基于液晶/聚合物光栅选频的高效率有机半导体激光器

材料科学 | 更新时间：2020-08-12

- 基于液晶/聚合物光栅选频的高效率有机半导体激光器
- High efficiency organic semiconductor laser using a liquid crystal/polymer grating as an oscillation cavity
- 液晶与显示 2017年32卷第11期页码：853-860
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室, 吉林长春 130033
  2.中国科学院大学, 北京 100049
- 作者简介：
  
  [ "刘明欢(1990-), 男, 吉林公主岭人, 博士研究生, 主要从事全息液晶/聚合物光栅, 全息偏振光栅以及有机半导体激光器等方面的研究。E-mail:liuminghuan13@mails.ucas.ac.cn" ]
  [ "李大禹(1979-), 男, 吉林长春人, 博士, 副研究员, 硕士生导师, 主要从事液晶自适应光学波前处理、GPU并行计算等方面的研究。E-mail:lidayu@ciomp.ac.cn" ]
- 基金信息：
  
  国家自然科学基金(61377032);国家自然科学基金(61378075);National Nature Science Foundation of China(61377032);the National Natural Science Foundation of China(61378075)
- DOI：10.3788/YJYXS20173211.0853
  中图分类号： O753;TP217
- 收稿日期：2017-07-05，
  
  录用日期：2017-8-12，
  
  纸质出版日期：2017-11-05
- 稿件说明：
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刘明欢, 李大禹, 姚丽双, 等. 基于液晶/聚合物光栅选频的高效率有机半导体激光器[J]. 液晶与显示, 2017,32(11):853-860.

Ming-huan LIU, Da-yu LI, Li-shuang YAO, et al. High efficiency organic semiconductor laser using a liquid crystal/polymer grating as an oscillation cavity[J]. Chinese journal of liquid crystals and displays, 2017, 32(11): 853-860.
刘明欢, 李大禹, 姚丽双, 等. 基于液晶/聚合物光栅选频的高效率有机半导体激光器[J]. 液晶与显示, 2017,32(11):853-860. DOI： 10.3788/YJYXS20173211.0853.

Ming-huan LIU, Da-yu LI, Li-shuang YAO, et al. High efficiency organic semiconductor laser using a liquid crystal/polymer grating as an oscillation cavity[J]. Chinese journal of liquid crystals and displays, 2017, 32(11): 853-860. DOI： 10.3788/YJYXS20173211.0853.

摘要

报道了一种基于液晶/聚合物光栅选频的高效率有机半导体激光器的制备方法。首先在一片玻璃基板上旋涂有机半导体荧光薄膜MEH-PPV作为增益介质，然后在其上通过光场中的定域光聚合制备液晶/聚合物光栅，形成分布式反馈（DFB）有机半导体激光器。激光出射阈值0.32

J/pulse，斜率转化效率高达7.8%，呈现良好的s偏振特性。采集了激光束的光斑，轮廓清晰，呈现扇形结构。通过改变光栅周期，实现了53.4 nm激光出射范围。本工作为新型有机激光器的制备提供了有益的指导和借鉴意义。

Abstract

We reported a fabrication technique of a high efficiency organic semiconductor laser device

which used a liquid crystal/polymer grating as an oscillation cavity. To fabricate a distributed feedback (DFB) organic semiconductor laser

the active medium poly[-methoxy-5-(2'-ethyl-hexyloxy)-1

4-phenylene-vinylene] (MEH-PPV) film was spin-coated on a piece of clean glass plate

and then a liquid crystal/polymer grating was fabricated on the MEH-PPV film via localized photo polymerization under an optical interference field. The lasing threshold was 0.32

J/pulse

and the conversion efficiency was as high as 7.8%. The lasing beams showed good character in s-polarization. The lasing beam pattern was collected by a digital camera

which showed a fan-shaped geometry. The 53.4 nm lasing range was obtained by varying the grating period. The high efficiency organic semiconductor laser in this work provides guidance for fabricating a novel organic laser device.

关键词

Keywords

references

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