材料科学
算法
分析化学(期刊)
计算机科学
化学
色谱法
作者
Guoru Li,Lin Yang,Ruwei Zhao,Feifei Wang,Hongkun Nie,Ruihua Wang,Kejian Yang,Baitao Zhang,Zihe Li
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-12-11
卷期号:59 (36): 11240-11240
被引量:15
摘要
Niobium carbide ( N b 2 C ), a novel two-dimensional MXene material, has attracted much attention due to its outstanding electronic and optical properties. In this work, a microfiber-based few-layer N b 2 C saturable absorber (SA) is fabricated by the magnetron sputtering deposition technique. The reverse saturable absorption (RSA) response of few-layer N b 2 C nanosheets is observed with I-scan measurements. The square-wave pulses (SWPs) are generated by using the as-prepared microfiber-based few-layer N b 2 C SA in an erbium-doped fiber laser. The SWP width increases from 0.33 to 2.061 ns with the single pulse energy increases linearly up to 0.89 nJ while the amplitude remains as a constant. In addition, nonlinear polarization rotation mode-locking fiber lasers with different cavity lengths are constructed to explore the formation conditions of SWP. Our results indicate that the RSA effect of the few-layer N b 2 C nanosheets plays a decisive role in the formation of the SWP.
科研通智能强力驱动
Strongly Powered by AbleSci AI