High-energy,hundred-picosecond pulsed 266 nm mid-ultraviolet generation by a barium borate crystal  

作　　者：Ning Wen Nan Wang Nan Zong Xue-Chun Lin Hong-Wei Gao Yong Bo Qin-Jun Peng Da-Fu Cui Zu-Yan Xu 

机构地区：[1]Key Laboratory of Functional Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,China [2]Laboratory of All-Solid-State Light Source,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,China [3]Key Laboratory of Solid-State Laser,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,China [4]Institute of Optical Physics and Engineering Technology,Qilu Zhongke,Jinan,China [5]University of Chinese Academy of Sciences,Beijing,China

出　　处：《High Power Laser Science and Engineering》2023年第2期127-131,共5页高功率激光科学与工程（英文版）

基　　金：This work was supported by the Instrument Developing Project of the Chinese Academy of Sciences(CAS)(No.GJJSTD2020007)。

摘　　要：We present a high-energy,hundred-picosecond(ps)pulsed mid-ultraviolet solid-state laser at 266 nm by a direct second harmonic generation(SHG)in a barium borate(BaB_(2)O_(4),BBO)nonlinear crystal.The green pump source is a 710 mJ,330 ps pulsed laser at a wavelength of 532 nm with a repetition rate of 1 Hz.Under a green pump energy of 710 mJ,a maximum output energy of 253.3 mJ at 266 nm is achieved with 250 ps pulse duration resulting in a peak power of more than 1 GW,corresponding to an SHG conversion efficiency of 35.7%from 532 to 266 nm.The experimental data were well consistent with the theoretical prediction.To the best of our knowledge,this laser exhibits both the highest output energy and highest peak power ever achieved in a hundred-ps/ps regime at 266 nm for BBO-SHG.

关 键 词：all-solid-state laser hundred-picosecond pulse mid-ultraviolet high-energy laser 

分 类 号：TN248[电子电信—物理电子学]