外文题目: Design of intense 1.5-cycle pulses generation at 3.6 mu m through a pressure gradient hollow-core fiber
作者: Huang, Zhiyuan; Wang, Ding; Dai, Ye; Li, Yanyan; Guo, Xiaoyang; Li, Wenkai; Chen, Yun; Lu, Jun; Liu, Zhengzheng; Zhao, Ruirui; Leng, Yuxin
刊名: Opt. Express
年: 2016 卷: 24 期: 9 页： 9280--9287
英文关键词:

DIFFERENCE-FREQUENCY-GENERATION; OPTICAL PARAMETRIC-AMPLIFIER; MIDINFRARED PULSES; CYCLE PULSES; LASER-PULSES; COMPRESSION; FS; AMPLIFICATION; IONIZATION; FIELD
英文摘要:
uWe theoretically study the nonlinear compression of the 10-mJ, 62-fs, 3.6-mu m laser pulses in an argon gas-filled hollow-core fiber with large diameter of 1000 mu m. Using a pressure gradient to restrict undesirable nonlinear effect such as ionization, especially at the entrance, we obtain the intense 18.3-fs (similar to 1.5 cycle) pulses at 3.6 mu m only through compression with CaF2 crystal, which can be used as an ultrafast source for strong field driven experiments. In addition, we calculate and discuss the relation between optimal fiber length and coupling efficiency for a given bandwidth. These results are useful for the design of using hollow-core fiber to compress the high-energy pulses with long wavelength. (C) 2016 Optical Society of America


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1364/OE.24.009280


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