Effects due to the induced potential in ultrashort laser interactions with Al(100) and Al(111) surfaces

30th International Conference on Photonic, Electronic, and Atomic Collisions

Rios Rubiano, C.A.^1 ; Della Picca, R.^1 ; Mitnik, D.M.^2 ; Silkin, V.M.^3,4 ; Gravielle, M.S.^2

CONICET and Centro Atómico Bariloche (CNEA), Bariloche, Argentina^1

Instituto de Astronomia y Fisica Del Espacio (IAFE, CONICET-UBA, Germany^2

Donostia International Physics Center (DIPC), Fac. de C. Quimicas, Univ. Del Pais Vasco, San Sebastián, Spain^3

IKERBASQUE, Basque Foundation for Science, Bilbao, Spain^4

关键词: Crystallographic orientations;    Electron response;    Grazing incidence;    Photoelectron emissions;    Photoelectron spectrum;    Potential effects;    Structure-based;    Ultrashort Laser;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/5/042003/pdf
DOI  :  10.1088/1742-6596/875/5/042003

来源: IOP

【 摘 要 】

Synopsis Photoelectron emission (PE) from the valence band of a metal surface due to the grazing incidence of ultrashort laser pulses on two faces of aluminum- Al(100) and Al(111) - is investigated in the framework of a distorted-wave formulation. We use the band-structure-based-Volkov (BSB-V) approach [1], including also induced-potential effects originated from the electron response of the surface to the external field. For both crystallographic orientations we found that the induced surface (IS) potential contributes to the emergence of band-structure signatures in the near-threshold region of photoelectron spectra.