中国物理B ›› 2007, Vol. 16 ›› Issue (2): 472-477.doi: 10.1088/1009-1963/16/2/031

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Accurate determination of the absolute phase and temporal-pulse phase of few-cycle laser pulses

龚尚庆1, 李儒新1, 徐至展1, 夏可宇2, 钮月萍2   

  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)State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate University of Chinese Academy of Sciences, Shanghai {\rm 201800, China
  • 收稿日期:2006-03-31 修回日期:2006-08-09 出版日期:2007-02-20 发布日期:2007-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60478002), and the Basic Research Key Foundation of Shanghai (Grant Nos 04JC14036 and 05DJ14003).

Accurate determination of the absolute phase and temporal-pulse phase of few-cycle laser pulses

Xia Ke-Yu(夏可宇)a)b), Gong Shang-Qing(龚尚庆)a)†, Niu Yue-Ping(钮月萍)a)b), Li Ru-Xin(李儒新)a), and Xu Zhi-Zhan(徐至展)a)   

  1. a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Graduate University of Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2006-03-31 Revised:2006-08-09 Online:2007-02-20 Published:2007-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60478002), and the Basic Research Key Foundation of Shanghai (Grant Nos 04JC14036 and 05DJ14003).

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摘要： A Fourier analysis method is used to accurately determine not only the absolute phase but also the temporal-pulse phase of an isolated few-cycle (chirped) laser pulse. This method is independent of the pulse shape and can fully characterize the light wave even though only a few samples per optical cycle are available. It paves the way for investigating the absolute phase-dependent extreme nonlinear optics, and the evolutions of the absolute phase and the temporal-pulse phase of few-cycle laser pulses.

关键词: absolute phase, temporal-pulse phase, few-cycle laser pulse, Fourier analysis

Abstract: A Fourier analysis method is used to accurately determine not only the absolute phase but also the temporal-pulse phase of an isolated few-cycle (chirped) laser pulse. This method is independent of the pulse shape and can fully characterize the light wave even though only a few samples per optical cycle are available. It paves the way for investigating the absolute phase-dependent extreme nonlinear optics, and the evolutions of the absolute phase and the temporal-pulse phase of few-cycle laser pulses.

Key words: absolute phase, temporal-pulse phase, few-cycle laser pulse, Fourier analysis

中图分类号:  (Beam characteristics: profile, intensity, and power; spatial pattern formation)

  • 42.60.Jf
02.30.Nw (Fourier analysis) 42.60.Mi (Dynamical laser instabilities; noisy laser behavior) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)