A picosecond widely tunable deep-ultraviolet laser for angle-resolved photoemission spectroscopy  

作　　者：张丰丰 杨峰 张申金 徐志 王志敏 许凤良 彭钦军 张景园 王晓洋 陈创天 许祖彦 

机构地区：[1]Research Center for Laser Physics and Technology,Key Laboratory of Functional Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences [3]Beijing Center for Crystal R & D,Key Laboratory of Functional Crystal and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2013年第6期410-412,共3页中国物理B（英文版）

基　　金：supported by the State Key Program for Basic Research of China (Grant No. 2010CB630706);National High Technology Research and Development Program of China;the National Natural Science Foundation of China (Grant No. 61138004)

摘　　要：We develop a picosecond widely tunable laser in a deep-ultraviolet region from 175 nm to 210 nm, generated by two stages of frequency doubling of a 80-MHz mode-locked picosecond Ti：sapphire laser. A β-BaB2O4 walk-off compensation configuration and a KBe2BO3F2 prism-coupled device are adopted for the generation of second harmonic and fourth harmonics, respectively. The highest power is 3.72 mW at 193 nm, and the fluctuation at 2.85 mW in 130 rain is less than ±2%.We develop a picosecond widely tunable laser in a deep-ultraviolet region from 175 nm to 210 nm, generated by two stages of frequency doubling of a 80-MHz mode-locked picosecond Ti：sapphire laser. A β-BaB2O4 walk-off compensation configuration and a KBe2BO3F2 prism-coupled device are adopted for the generation of second harmonic and fourth harmonics, respectively. The highest power is 3.72 mW at 193 nm, and the fluctuation at 2.85 mW in 130 rain is less than ±2%.

关 键 词：tunable laser deep ultraviolet walk-off compensation KBBF crystal 

分 类 号：TN24[电子电信—物理电子学]