Broadband Nonlinear Photonics in Few-Layer Borophene
Broadband Nonlinear Photonics in Few-Layer Borophene
复制标题
少层硼烯中的宽带非线性光子学
DOI：
10.1002/smll.202006891
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发表时间：
2021
期刊：
影响因子：
13.3
通讯作者：
Gao Lingfeng
中科院分区：
文献类型：
--
作者：
Ma Chunyang;Yin Peng;Khan Karim;Tareen Ayesha Khan;Huang Rui;Du Juan;Zhang Ye;Shi Zhe;Cao Rui;Wei Songrui;Wang Xin;Ge Yanqi;Song Yufeng;Gao Lingfeng
在本文中，通过液相剥离合成2D硼氢化物。系统地分析了所制备的硼化物的形貌和结构，并利用Z扫描测量了其非线性光学性能。研究发现，硼化物的可饱和吸收（SA）特性使其成为一种优良的宽带光开关，在近红外和中红外激光系统中被广泛用于锁模。分别在中心波长1063和1560 nm处成功地输出了持续时间短至792和693 fs的超稳脉冲。此外，在1878 nm波长的稳定的脉冲被证明是从一个thu锁模光纤激光器基于相同的硼氢化钠SA。这项研究揭示了用于激光器的硼化物的巨大潜力，有助于扩展光子技术的前沿。
In this paper, 2D borophene is synthesized through a liquid‐phase exfoliation. The morphology and structure of as‐prepared borophene are systemically analyzed, and theZ‐scan is used to measure the nonlinear optical properties. It is found that the saturable absorber (SA) properties of borophene make it serve as an excellent broadband optical switch, which is strongly used for mode‐locking in near‐ and mid‐infrared laser systems. Ultrastable pulses with durations as short as 792 and 693 fs are successfully delivered at the central wavelengths of 1063 and 1560 nm, respectively. Furthermore, stable pulses at a wavelength of 1878 nm are demonstrated from a thulium mode‐locked fiber laser based on the same borophene SA. This research reveals a significant potential for borophene used in lasers helping extending the frontiers of photonic technologies.