Third-order optical nonlinearity in Ti2C MXene for Q-switching operation at 1-2 μm

被引：8
|
作者：
Zhang, Tong [1 ]
Chu, Hongwei [1 ]
Li, Ying [2 ]
Zhao, Shengzhi [1 ]
Ma, Xiaoyang [1 ]
Pan, Han [1 ]
Li, Dechun [1 ]
机构：
[1] Shandong Univ, Sch Informat Sci & Engn, Qingdao 266237, Peoples R China
[2] Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China
来源：
OPTICAL MATERIALS | 2022年 / 124卷
基金：
中国国家自然科学基金;
关键词：
Ti2C MXene; Nonlinear optical properties; Optical susceptibility; Two-photon absorption; Saturable absorber; SATURABLE ABSORBER; EXFOLIATION; NANOSHEETS;
D O I：
10.1016/j.optmat.2022.112054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two-dimensional (2D) transition metal carbides/nitrides (MXene) possess the peculiar physical and electronic properties. In this paper, we reported the wideband third-order optical nonlinearities in Ti2C MXene from 1 to 2 mu m. The maximum effective nonlinear absorption coefficients were -0.56 cm/MW, -0.702 cm/MW and -0.62 cm/MW at 1, 1.3 and 2 mu m, respectively. Moreover, two-photon absorption effect was also investigated. Based on the Ti2C MXene saturable absorber, passively Q-switched bulk lasers operating at 1, 1.34 and 2 mu m were realized for the first time. The minimum pulse duration was obtained as 128 ns at 1064 nm.
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收藏
页数：6
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