镱
材料科学
光纤激光器
激光器
光学
太赫兹辐射
宽带
光子晶体光纤
光电子学
芯(光纤)
波长
兴奋剂
物理
复合材料
作者
Young‐Gyun Jeong,Luca Zanotto,Dong-Jae Seo,Yujin Nam,Xin Jin,Jisoo Kyoung,Bruno E. Schmidt,Mostafa Shalaby,Luca Razzari
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2024-12-10
卷期号:50 (2): 530-530
摘要
We investigate the enhanced terahertz generation in the organic crystal BNA when pumped by compressed high-energy ytterbium laser pulses. By compressing the pump pulses from 170 fs down to 43 fs using an argon-filled hollow-core fiber and chirped mirrors, the terahertz conversion efficiency is increased by 2.4 times, leading to the generation of multi-microjoule terahertz pulses with a frequency spectrum almost twice as wide, extending up to 19 THz. These findings showcase a simple and efficient way to generate intense and broadband terahertz pulses by means of an amplified ytterbium laser system.
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