研究目的
Investigating the dependence of direct and rescattered photoelectron spectra of ?uorine anions on orbital symmetry in a short laser pulse.
研究成果
The orbital symmetry strongly affects the main shape of the photoelectron spectra, with the orbital symmetry only affecting the intracycle interference for the low-energy electron spectra. The elastic scattering differential cross section leaves different ?ngerprints in the photoelectron spectra for atomic orbitals with different magnetic quantum numbers.
研究不足
The study is limited to theoretical calculations and does not include experimental validation. The SFA model's accuracy is questioned for high-energy electron spectra for magnetic quantum number m = 0.
1：Experimental Design and Method Selection:
The study employs an exact solution to the time-dependent Schr?dinger equation and the strong-?eld approximation to calculate the photoelectron spectra of ?uorine anions for different atomic orbitals.
2：Sample Selection and Data Sources:
The study focuses on ?uorine anions with valence p orbitals, utilizing a model potential to reproduce the ground-state energy of the ?uorine anions.
3：List of Experimental Equipment and Materials:
A few-cycle linearly polarized laser pulse with a peak intensity of
4：7 × 1013 W/cm2 at the wavelength of 1400 nm is used. Experimental Procedures and Operational Workflow:
The TDSE is solved within the single active electron approximation, and the SFA model is used to calculate the transition amplitude from an initial ground state into a ?nal Volkov state.
5：Data Analysis Methods:
The photoelectron momentum distribution is obtained by calculating the transition probability amplitudes for atomic orbitals with different magnetic quantum numbers.
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