中国物理B ›› 2017, Vol. 26 ›› Issue (9): 93201-093201.doi: 10.1088/1674-1056/26/9/093201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Isolated attosecond pulse generation with few-cycle two-color counter-rotating circularly polarized laser pulses

Jin-Song Wu(吴劲松), Zheng-Mao Jia(贾正茂), Zhi-Nan Zeng(曾志男)   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2017-04-16 修回日期:2017-05-18 出版日期:2017-09-05 发布日期:2017-09-05
  • 通讯作者: Zhi-Nan Zeng E-mail:zhinan_zeng@siom.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grants Nos. 61690223, 11561121002, 61521093, 11227902, 11404356, and 11574332) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16).

Isolated attosecond pulse generation with few-cycle two-color counter-rotating circularly polarized laser pulses

Jin-Song Wu(吴劲松)1,2, Zheng-Mao Jia(贾正茂)1, Zhi-Nan Zeng(曾志男)1   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-04-16 Revised:2017-05-18 Online:2017-09-05 Published:2017-09-05
  • Contact: Zhi-Nan Zeng E-mail:zhinan_zeng@siom.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grants Nos. 61690223, 11561121002, 61521093, 11227902, 11404356, and 11574332) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16).

摘要:

Most of the schemes for generating isolated attosecond pulses (IAP) are sensitive to the carrier-envelope phase (CEP) of the driving lasers. We propose a scheme for generating IAP using two-color counter-rotating circularly polarized (TC-CRCP) laser pulses. The results demonstrate that the dependence of the IAP generation on CEP stability is largely reduced in this scheme. IAP can be generated at most of CEPs. Therefore, the experiment requirements become lower.

关键词: isolated attosecond pulse, carrier-envelope phase, two-color counter-rotating circularly polarized laser fields, high-order harmonic generation

Abstract:

Most of the schemes for generating isolated attosecond pulses (IAP) are sensitive to the carrier-envelope phase (CEP) of the driving lasers. We propose a scheme for generating IAP using two-color counter-rotating circularly polarized (TC-CRCP) laser pulses. The results demonstrate that the dependence of the IAP generation on CEP stability is largely reduced in this scheme. IAP can be generated at most of CEPs. Therefore, the experiment requirements become lower.

Key words: isolated attosecond pulse, carrier-envelope phase, two-color counter-rotating circularly polarized laser fields, high-order harmonic generation

中图分类号:  (Multiphoton ionization and excitation to highly excited states)

  • 32.80.Rm
42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)