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Two-dimensional tin diselenide nanosheetspretreated with an alkaloid for near- and mid-infrared ultrafast photonics
Photonics Research ( IF 7.6 ) Pub Date : 2020-10-12 , DOI: 10.1364/prj.398203
Zhenhong Wang , Bin Zhang , Bing Hu , Zhongjun Li , Chunyang Ma , Yu Chen , Yufeng Song , Han Zhang , Jun Liu , Guohui Nie

Two-dimensional (2D) tin diselenide (SnSe2), a novel layered material with excellent optical and electronic properties, has been extensively investigated in various promising applications, including photodetectors, optical switching, and ultrafast photonics. In this work, SnSe2 nanosheets have been obtained after pretreatment in an alkaloid, exhibiting high optical absorption and electron-enriched properties. Besides, the performances of the prepared SnSe2 in near-infrared (NIR) and mid-infrared (MIR) ultrafast photonics are presented. Notably, by employing the SnSe2-deposited microfiber device as a saturable absorber (SA) exhibiting typical nonlinear optical absorption properties, stable ultrashort pulses and rogue waves are realized in an erbium-doped fiber laser. Furthermore, the SnSe2-deposited SA device is also applied to a thulium-doped fiber laser to achieve stable ultrashort pulses. This study indicates that SnSe2 is expected to be a suitable candidate for ultrafast fiber lasers in the NIR and MIR regions.

中文翻译:

用生物碱预处理的二维二硒化锡纳米片用于近红外和中红外超快光子学

二维 (2D) 二硒化锡 (SnSe2) 是一种具有优异光学和电子特性的新型层状材料,已在各种有前景的应用中得到广泛研究,包括光电探测器、光开关和超快光子学。在这项工作中,在生物碱中预处理后获得了 SnSe2 纳米片,具有高光吸收和富电子特性。此外,还介绍了制备的 SnSe2 在近红外 (NIR) 和中红外 (MIR) 超快光子学中的性能。值得注意的是,通过采用 SnSe2 沉积微纤维器件作为可饱和吸收体 (SA),表现出典型的非线性光吸收特性,在掺铒光纤激光器中实现了稳定的超短脉冲和无序波。此外,SnSe2 沉积的 SA 器件也应用于掺铥光纤激光器,以实现稳定的超短脉冲。该研究表明,SnSe2 有望成为 NIR 和 MIR 区域超快光纤激光器的合适候选材料。
更新日期:2020-10-12
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