Open AccessAttosecond time delay in multiphoton ionization
Author(s) -
Weifeng Yang,
X. Liu,
Song Xia,
P. Li,
J. Chen
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/7/072013
Subject(s) - attosecond , semiclassical physics , ionization , physics , bound state , atomic physics , coulomb , quantum , photoionization , quantum mechanics , electron , ion , laser , ultrashort pulse
Synopsis Here with a semiclassical picture we show that, after emerging in the continuum state, the photoelectron can be temporarily re-trapped by the atomic potential in a quasi-bound state, stays there for hundreds of at-toseconds before it gets free again, which is the origin of the remarkable time delay in above threshold ionization experiment. Our results build a bridge between the seemingly unrelated quantum EWS and classical Coulomb-induced time delays, and hold promise for intuitive interpreting fundamental electronic processes in photophysical and photochemical experiments.