Calculation of the photoelectron spectra under a scaling transform

• 作 者: 叶会亮 吴艳 张敬涛 邵初寅
• 机 构: State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optical and Fine Mechanics,
• 出 处: Chinese Physics B
• 发表日期: 2013年01期
• 关键词: photoelectron scaling validity convenient irradiated verification invariant unch

By solving the time-dependent Schro¨dinger equation, the dependence of photoelectron energy spectra on the binding energy of targets, wavelength and the intensity of laser pulse is exhibited and a scaling law of kinetic energy spectra of both the direct and the rescattered photoelectrons is concluded. The scaling law provides a convenient tool to determine the equivalent photoionization process of various atoms or molecules in various laser fields. The verification of the scaling law by independent methods provides incontestable support to the validity of the scaling law.

By solving the time-dependent Schro¨dinger equation, the dependence of photoelectron energy spectra on the binding energy of targets, wavelength and the intensity of laser pulse is exhibited and a scaling law of kinetic energy spectra of both direct and the rescattered photoelectrons is concluded. The scaling law provides a convenient tool to determine the equivalent photoionization process of various atoms or molecules in various laser fields. The verification of the scaling law by independent methods provides incontestable support to the validity of the scaling law.