Progress and Perspective toward Continuous-Wave Organic Solid-State Lasers
Progress and Perspective toward Continuous-Wave Organic Solid-State Lasers
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DOI：
10.1002/adma.202211873
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发表时间：
2023-05-10
影响因子：
29.4
通讯作者：
Adachi，Chihaya
中科院分区：
文献类型：
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作者：
Tang，Xun;Senevirathne，Chathuranganie A. M.;Adachi，Chihaya
连续波(CW)有机固体激光器在光谱学、传感和通信方面是非常理想的，但在光电子学中是一个巨大的挑战。长寿命三重态激子的积累和相应的激发态吸收，以及单重态和三重态的湮灭是连续激光的主要障碍。在这里，回顾了有机增益介质中单态和三态利用的进展，以揭示与三态工作中的问题。然后，讨论了在长激发脉冲期间抑制光振荡的激子行为。此外，从分子设计、先进的谐振器结构、三重态清除和潜在的三重态贡献策略等方面总结了将有机激光脉冲宽度从微秒增加到连续运转的最新进展。最后，对实现稳定的三重态贡献连续波有机激光器的发展方向和前景进行了展望。
A continuous‐wave (CW) organic solid‐state laser is highly desirable for spectroscopy, sensing, and communications, but is a significant challenge in optoelectronics. The accumulation of long‐lived triplet excitons and relevant excited‐state absorptions, as well as singlet–triplet annihilation, are the main obstacles to CW lasing. Here, progress in singlet‐ and triplet‐state utilizations in organic gain media is reviewed to reveal the issues in working with triplets. Then, exciton behaviors that inhibit light oscillations during long excitation pulses are discussed. Further, recent advances in increasing organic lasing pulse widths from microseconds toward the indication of CW operation are summarized with respect to molecular designs, advanced resonator architectures, triplet scavenging, and potential triplet contribution strategies. Finally, future directions and perspectives are proposed for achieving stable CW organic lasers with significant triplet contribution.