A Novel Method for Measuring the Absolute Phase of a Few-Cycle High Intensity Laser
ZENG Zhi-Nan, LI Ru-Xin, YU Wei, XU Zhi-Zhan
Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
A Novel Method for Measuring the Absolute Phase of a Few-Cycle High Intensity Laser
ZENG Zhi-Nan;LI Ru-Xin;YU Wei;XU Zhi-Zhan
Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
42.65.Ky ,
32.80.Rm ,
42.50.Hz
Abstract ： The effect of the absolute phase of the few-cycle driving laser field on the generation and measurement of high-order harmonic attosecond pulses is investigated theoretically. We find that the generated attosecond soft-x-ray pulse is locked to the oscillations of the driving laser field, but not to the envelope of the laser pulse, and the intensity ratio of two adjacent attosecond pulses is exponential as a function of the absolute phase. Based on these results, we propose a novel method to detect the absolute phase of the driving laser field by measuring the spatial distribution of the photoelectrons induced by the attosecond soft-x-ray pulse and the driving laser field.
Key words ：
42.65.Ky
32.80.Rm
42.50.Hz
出版日期: 2002-08-01
:
42.65.Ky
(Frequency conversion; harmonic generation, including higher-order harmonic generation)
32.80.Rm
(Multiphoton ionization and excitation to highly excited states)
42.50.Hz
(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
引用本文:
ZENG Zhi-Nan;LI Ru-Xin;YU Wei;XU Zhi-Zhan. A Novel Method for Measuring the Absolute Phase of a Few-Cycle High Intensity Laser[J]. 中国物理快报, 2002, 19(8): 1112-1114.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I8/1112
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2002, Vol. 19 
