Graphdiyne as a saturable absorber for 2-µm all-solid-state Q-switched laser  

石墨炔作为可饱和吸收体的2μm全固态调Q激光器

作　　者：Yuqian Zu Jia Guo Qianqian Hao Feng Zhang Cong Wang Jie Liu Bing Wang 祖玉倩;郭佳;郝倩倩;张峰;王聪;刘杰;王冰(Shandong Provincial Engineering and Technical Center of Light Manipulations and Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan,250014,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan,250358,China;Institute of Data Science and Technology,Shandong Normal University,Jinan,250014,China;Institute of Microscale Optoelectronics,Collaborative Innovation Center for Optoelectronic Science&Technology,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology,Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ),Shenzhen University,Shenzhen,518060,China)

机构地区：[1]Shandong Provincial Engineering and Technical Center of Light Manipulations and Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan,250014,China [2]Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan,250358,China [3]Institute of Data Science and Technology,Shandong Normal University,Jinan,250014,China [4]Institute of Microscale Optoelectronics,Collaborative Innovation Center for Optoelectronic Science&Technology,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology,Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ),Shenzhen University,Shenzhen,518060,China

出　　处：《Science China Materials》2021年第3期683-690,共8页中国科学（材料科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (11974220, 61635012,61875138, 61961136001, and U1801254);the State Key Research Development Program of China (2019YFB2203503)

摘　　要：As a novel one-atom-thick carbon allotrope,graphdiyne(GDY)has attracted wide interest in two-dimensional materials owing to its unique feature with a planar layer comprising sp2-and sp-hybridized carbon atoms and a direct natural bandgap.A high-quality saturable absorber(SA)based on GDY was successfully fabricated,and the nonlinear saturable absorption properties were investigated.A compact diode-pumped solid-state passively Q-switched laser based on the as-prepared GDY-SA could be operated at 2µm.The Q-switched laser delivered a maximum average output power of 1.29 W at a central wavelength of 1908.41 nm with up to 54.8%slope efficiency.A repetition rate of 91.58 kHz and single pulse energy of 23.08µJ were obtained.This work is the first application of GDY as an SA to generate all-solid-state pulsed lasers.These results indicate that GDY is a promising SA for solid-state pulsed lasers and has further application potential for ultrafast photonic devices in the 2-µm region.作为一种新型单原子层的碳同素异形体,石墨炔在二维材料领域引起了广泛兴趣,其独特之处在于:具有sp~2和sp杂化的碳原子组成的平面结构和直接存在的天然带隙能.本文成功制备了基于石墨炔的高质量可饱和吸收体,并研究了其非线性可饱和吸收特性.以石墨炔可饱和吸收体制备的脉冲激光调制器件,实现了高效、结构紧凑的二极管泵浦全固态2微米被动调Q激光运转.调Q激光器中心波长位于1908.41 nm处,最大输出功率1.29 W,斜效率高达54.8%,最高重复频率91.58 kHz.这是首次将石墨炔作为可饱和吸收体应用于全固态脉冲激光器中.实验结果表明石墨炔可饱和吸收调制器件在高功率全固态脉冲激光器中具有广泛的应用前景.

关 键 词：graphdiyne saturable absorber all-solid-state laser passively Q-switched two-dimensional materials 

分 类 号：TQ127.11[化学工程—无机化工] TN248.1[电子电信—物理电子学]