A Scaling Law of Photoelectron Angular Distributions in One-Cycle Laser Pulses
BAI Li-Hua, ZHANG Jing-Tao, XU Zhi-Zhan
Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
A Scaling Law of Photoelectron Angular Distributions in One-Cycle Laser Pulses
BAI Li-Hua;ZHANG Jing-Tao;XU Zhi-Zhan
Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
32.80.Rm ,
42.50.Hz ,
42.65.Vk
Abstract ： The photoelectron angular distributions (PADs) from above-threshold ionization of atoms irradiated by one-cycle laser pulses satisfy a scaling law. The scaling law denotes that the main features of the PADs are determined by four dimensionless parameters: (1) the ponderomotive number up =Up /ħω, the ponderomotive energy Up in units of laser photon energy; (2) the binding number εb =Eb /ħω, the atomic binding energy Eb in units of laser photon energy; (3) the number of absorbed photons q; (4) the carrier-envelope phase Ф0 , the phase of the carrier wave with respect to the envelope. We verify the scaling law by theoretical analysis and numerical calculation, compared to that in long-pulse case. A possible experimental test to verify the scaling law is suggested.
Key words ：
32.80.Rm
42.50.Hz
42.65.Vk
出版日期: 2005-04-01
:
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)
42.65.Vk
引用本文:
BAI Li-Hua;ZHANG Jing-Tao;XU Zhi-Zhan. A Scaling Law of Photoelectron Angular Distributions in One-Cycle Laser Pulses[J]. 中国物理快报, 2005, 22(4): 853-856.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I4/853
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2005, Vol. 22 
