Ta_(2)NiSe_(5) nanosheets as a novel broadband saturable absorber for solid-state pulse laser generation

作     者：Bingzheng Yan Haowen Guo Guanbai He Jiajia Mao Feifei Wang Kejian Yang Baitao Zhang Jingliang He 颜秉政;郭皓文;何冠柏;毛佳佳;王菲菲;杨克建;张百涛;何京良

作者机构：State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100China School of PhysicsSoutheast UniversityNanjing 210096China Collaborative Innovation Center of Light Manipulations and ApplicationsShandong Normal UniversityJinan 250358China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2021年第64卷第6期

页      面：1468-1476页

核心收录：

学科分类：080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 080401[工学-精密仪器及机械] 080501[工学-材料物理与化学] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (61975095, 61675116, and 61575110) the Young Scholars Program of Shandong University (2017WLJH48) the Youth Cross Innovation Group of Shandong University (2020QNQT) the Key Research and Development Program of Shandong Province (2019JZZY020206) Shenzhen Science and Technology Research and Development Funds (JCYJ20180305163932273) the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices (KF201908) 

主　　题：Ta_(2)NiSe_(5) saturable absorbers passively Q-switched lasers ultrafast lasers 

摘      要：Two-dimensional(2D)ternary chalcogenides have attracted great attentions because of their novel chemical and physical properties arising from the synergistic effect and stoichiometric variation with the additional third element compared with their binary ***,high-quality 2D tantalum nickel selenide(Ta_(2)NiSe_(5))nanosheets are successfully fabricated by a liquid-phase exfoliation(LPE)*** ultrafast excited carrier relaxation time and nonlinear optical absorption response are investigated and reveal that the prepared 2D Ta_(2)NiSe_(5)nanosheets have excellent broadband saturable absorption properties,which are further illustrated by three passively Q-switched(PQS)allsolid-state lasers operating at 1.0,2.0 and 2.8μm with the Ta_(2)NiSe_(5)nanosheet-based saturable absorber(SA).Furthermore,mode-locked laser operation with the pulse width as short as 356 fs is also realized at 1.0μ*** work not only demonstrates the excellent nonlinear optical proprieties and optical modulation performance of Ta_(2)NiSe_(5),but also paves the way for exploring the photonic and optoelectronic proprieties of ternary chalcogenide materials.