中国物理B ›› 2014, Vol. 23 ›› Issue (7): 74206-074206.doi: 10.1088/1674-1056/23/7/074206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

All optical method for measuring the carrier envelope phase from half-cycle cutoffs

李钱光a b, 陈欢a, 张秀a, 易煦农a   

  1. a School of Physics and Electronic-information Engineering, Hubei Engineering University, Xiaogan 432000, China;
    b Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
  • 收稿日期:2013-09-08 修回日期:2013-11-28 出版日期:2014-07-15 发布日期:2014-07-15
  • 基金资助:
    Project supported by the Key Foundation of the Ministry of Education of China (Grant No. 211117) and the Foundation of Hubei Co-innovation Center for Utilization of Biomass Waste, China (Grant No. XTCX004).

All optical method for measuring the carrier envelope phase from half-cycle cutoffs

Li Qian-Guang (李钱光)a b, Chen Huan (陈欢)a, Zhang Xiu (张秀)a, Yi Xu-Nong (易煦农)a   

  1. a School of Physics and Electronic-information Engineering, Hubei Engineering University, Xiaogan 432000, China;
    b Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
  • Received:2013-09-08 Revised:2013-11-28 Online:2014-07-15 Published:2014-07-15
  • Contact: Li Qian-Guang E-mail:liqianguang@126.com
  • About author:42.65.Ky; 42.65.Re; 42.65.-k
  • Supported by:
    Project supported by the Key Foundation of the Ministry of Education of China (Grant No. 211117) and the Foundation of Hubei Co-innovation Center for Utilization of Biomass Waste, China (Grant No. XTCX004).

摘要: An all optical method is demonstrated for measuring the carrier-envelope phase (CEP) of few-cycle laser pulses. It is found that, in the few-cycle regime, the high harmonic spectrum generated from asymmetric molecules shows several half-cycle cutoffs that change their positions as the CEP varies. Such half-cycle cutoffs represent the fingerprint of different quantum trajectories and the waveform of the driving pulse. In this case, the CEP can be accurately measured from the half-cycle cutoffs.

关键词: high harmonic generation, carrier-envelope phase, measurement

Abstract: An all optical method is demonstrated for measuring the carrier-envelope phase (CEP) of few-cycle laser pulses. It is found that, in the few-cycle regime, the high harmonic spectrum generated from asymmetric molecules shows several half-cycle cutoffs that change their positions as the CEP varies. Such half-cycle cutoffs represent the fingerprint of different quantum trajectories and the waveform of the driving pulse. In this case, the CEP can be accurately measured from the half-cycle cutoffs.

Key words: high harmonic generation, carrier-envelope phase, measurement

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) 42.65.-k (Nonlinear optics)