中国物理B ›› 2021, Vol. 30 ›› Issue (11): 114206-114206.doi: 10.1088/1674-1056/abf4be

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Effect of pulse duration on generation of attosecond pulse with coherent wake emission

Siyu Chen(陈思宇)1,2, Zhinan Zeng(曾志男)2,†, and Ruxin Li(李儒新)1,2   

  1. 1 School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;
    2 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2021-02-25 修回日期:2021-03-30 接受日期:2021-04-05 出版日期:2021-10-13 发布日期:2021-10-13
  • 通讯作者: Zhinan Zeng E-mail:zhinan_zeng@mail.siom.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91950203, 11874374, and 61690223) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16).

Effect of pulse duration on generation of attosecond pulse with coherent wake emission

Siyu Chen(陈思宇)1,2, Zhinan Zeng(曾志男)2,†, and Ruxin Li(李儒新)1,2   

  1. 1 School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;
    2 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2021-02-25 Revised:2021-03-30 Accepted:2021-04-05 Online:2021-10-13 Published:2021-10-13
  • Contact: Zhinan Zeng E-mail:zhinan_zeng@mail.siom.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91950203, 11874374, and 61690223) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16).

摘要: High-order harmonics and attosecond pulse generation with coherent wake emission are theoretically investigated for the effect of pulse duration and carrier envelope phase (CEP) of few-cycle laser pulse. We find that short pulse duration will cause the negative chirp for the high harmonics. When the laser pulse is shortened to a few cycles, the influence of the laser CEP on the chirp of the harmonics will also become more prominent.

关键词: coherent wake emission, carrier envelope, attosecond pulse, high-order harmonics

Abstract: High-order harmonics and attosecond pulse generation with coherent wake emission are theoretically investigated for the effect of pulse duration and carrier envelope phase (CEP) of few-cycle laser pulse. We find that short pulse duration will cause the negative chirp for the high harmonics. When the laser pulse is shortened to a few cycles, the influence of the laser CEP on the chirp of the harmonics will also become more prominent.

Key words: coherent wake emission, carrier envelope, attosecond pulse, high-order harmonics

中图分类号:  (Frequency conversion; harmonic generation, including higher-order harmonic generation)

  • 42.65.Ky
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 52.38.-r (Laser-plasma interactions) 52.65.-y (Plasma simulation)