中国物理B ›› 2013, Vol. 22 ›› Issue (6): 63201-063201.doi: 10.1088/1674-1056/22/6/063201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

X-ray-boosted photoionization for the measurement of an intense laser pulse

葛愉成, 何海萍   

  1. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
  • 收稿日期:2012-10-14 修回日期:2013-01-21 出版日期:2013-05-01 发布日期:2013-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11175010).

X-ray-boosted photoionization for the measurement of an intense laser pulse

Ge Yu-Cheng (葛愉成), He Hai-Ping (何海萍)   

  1. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
  • Received:2012-10-14 Revised:2013-01-21 Online:2013-05-01 Published:2013-05-01
  • Contact: Ge Yu-Cheng E-mail:gyc@pku.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11175010).

摘要: Investigations show that the X-ray-boosted photoionization (XBP) has the following advantages for in-situ measurements of ultrahigh laser intensity I and field envelope F(t) (time t, pulse duration τL, carrier-envelope-phase φ): accuracy, dynamic ranges, and rapidness. The calculated XBP spectra resemble inversely proportional functions of the photoelectron momentum shift. The maximum momentum p and the observable value Q (defined as a double integration of a normalized photoelectron energy spectrum, PES) linearly depend on I1/2 and τL, respectively. φ and F(t) can be determined from the PES cut-off energy and peak positions. The measurable laser intensity can be up to and over 1018 W/cm2 by using high energy X-rays and highly charged inert gases.

关键词: measurement of ultrahigh laser pulse, X-ray-boosted photoionization, photoelectron energy spectrum, quantum interference

Abstract: Investigations show that the X-ray-boosted photoionization (XBP) has the following advantages for in-situ measurements of ultrahigh laser intensity I and field envelope F(t) (time t, pulse duration τL, carrier-envelope-phase φ): accuracy, dynamic ranges, and rapidness. The calculated XBP spectra resemble inversely proportional functions of the photoelectron momentum shift. The maximum momentum p and the observable value Q (defined as a double integration of a normalized photoelectron energy spectrum, PES) linearly depend on I1/2 and τL, respectively. φ and F(t) can be determined from the PES cut-off energy and peak positions. The measurable laser intensity can be up to and over 1018 W/cm2 by using high energy X-rays and highly charged inert gases.

Key words: measurement of ultrahigh laser pulse, X-ray-boosted photoionization, photoelectron energy spectrum, quantum interference

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

  • 32.80.Rm
42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)