高度稳定、高效的有机微腔偏振子激光器

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Julia Witt, Andreas Mischok, Florian Le Roux, Malte C. Gather
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引用次数: 0

摘要

有机极化子激光器的阈值极低,是有机光子激光器的理想替代品。然而,器件的稳定性仍然是一个挑战,部分原因是顶部电介质镜沉积过程中的材料降解。我们展示了基于 4,4′-双(4-(9H-咔唑-9-基)苯乙烯基)联苯 (BSBCz) 作为活性材料的极化子激光器,其激光阈值低至 8.7 μJ/cm2。经过优化的器件在超过阈值 3.8 倍的 100,000 次激发脉冲后,衰减极小。我们的研究结果表明,BSBCz 是未来注入驱动型极化子激光器的理想候选材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A highly stable and efficient organic microcavity polariton laser

A highly stable and efficient organic microcavity polariton laser

With their remarkably low thresholds, organic polariton lasers are a promising alternative to organic photonic lasers. However, device stability remains a challenge, in part due to material degradation during deposition of the top dielectric mirror. We demonstrate polariton lasers based on 4,4′-Bis(4-(9H-carbazol-9-yl)styryl)biphenyl (BSBCz) as active material that achieve a low lasing threshold of 8.7 μJ/cm2, and we show that a ZrO2 protection layer between active layer and top mirror significantly improves stability. Optimized devices exhibit minimal degradation after 100,000 excitation pulses at 3.8 times above threshold. Our findings establish BSBCz as an attractive candidate for future injection driven polariton lasers.

Graphical abstract

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来源期刊
MRS Communications
MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
10.50%
发文量
166
审稿时长
>12 weeks
期刊介绍: MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.
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