High performance planar microcavity organic semiconductor lasers based on thermally evaporated top distributed Bragg reflector

doi:10.1063/5.0016052

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	High performance planar microcavity organic semiconductor lasers based on thermally evaporated top distributed Bragg reflector
	Y. S. Hu,F. Bencheikh,S. Chenais,S. Forget,X. Y. Liu and C. Adachi
	2020
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	117 期号:15 页码:5
摘要	High performance organic semiconductor lasers (OSLs), especially those under current injection, have been sought for decades due to their potentially great applications in fields such as spectroscopy, displays, medical devices, and optical interconnection. The design and fabrication of high-quality resonators is a prerequisite for high performance OSLs. In the case of planar microcavities, the fabrication process of top distributed Bragg reflectors (DBRs) usually requires electron beam evaporation or manual lamination on top of organic thin-film layers, which can lead to issues including degradation of the organic materials, large-scale non-uniformity, and difficulties for current injection. Here, we report a non-destructive way of fabricating a top DBR by thermal evaporation. The top DBR based on thermally evaporated alternative TeOx/LiF stacks shows low morphological roughness, high process tolerance, and high reflectivity. Moreover, the deposition process causes negligible damage to the organic thin-film layers underneath. With the combination of a conventional e-beam evaporated bottom DBR, a high performance planar microcavity OSL with a low threshold of 1.7 mu J cm(-2), an emission linewidth of 0.24nm, and an angular divergence of <3 degrees has been achieved under nitrogen laser pumping. Similar performance, with a high Gaussian beam quality comparable with that of an ideal diffraction-limited beam, was also obtained under diode pumping, showing the potential of this technique for building compact and cost-effective organic lasers with good beam quality. Our result will open a promising route for future high performance microcavity optoelectronic devices, especially for laser devices under current injection.
DOI	10.1063/5.0016052
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64552
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. S. Hu,F. Bencheikh,S. Chenais,S. Forget,X. Y. Liu and C. Adachi. High performance planar microcavity organic semiconductor lasers based on thermally evaporated top distributed Bragg reflector[J]. Applied Physics Letters,2020,117(15):5.
APA	Y. S. Hu,F. Bencheikh,S. Chenais,S. Forget,X. Y. Liu and C. Adachi.(2020).High performance planar microcavity organic semiconductor lasers based on thermally evaporated top distributed Bragg reflector.Applied Physics Letters,117(15),5.
MLA	Y. S. Hu,F. Bencheikh,S. Chenais,S. Forget,X. Y. Liu and C. Adachi."High performance planar microcavity organic semiconductor lasers based on thermally evaporated top distributed Bragg reflector".Applied Physics Letters 117.15(2020):5.

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