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.

引用

页数：6

共 30 条

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