Delay in Atomic Photoionization

Journal Article · Thu Dec 02 23:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.233002· OSTI ID:21554441

Kheifets, A S ^[1]; Ivanov, I A ^[1]

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1. Research School of Physical Sciences, Australian National University, Canberra ACT 0200 (Australia)

We analyze the time delay between emission of photoelectrons from the outer valence ns and np subshells in noble gas atoms following absorption of an attosecond extreme ultraviolet pulse. Various processes such as elastic scattering of the photoelectron on the parent ion and many-electron correlation affect the apparent 'time zero' when the photoelectron leaves the atom. This qualitatively explains the time delay between photoemission from the 2s and 2p subshells of Ne as determined experimentally by attosecond streaking [Science 328, 1658 (2010)]. However, with our extensive numerical modeling, we were only able to account for less than half of the measured time delay of 21{+-}5 as. We argue that the extreme ultraviolet pulse alone cannot produce such a large time delay and it is the streaking IR field that is most likely responsible for this effect.

• OSTI ID: 21554441
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ATOMS
CHARGED PARTICLES
CORRELATIONS
ELASTIC SCATTERING
ELECTROMAGNETIC RADIATION
ELECTRON CORRELATION
ELEMENTS
EMISSION
EXTREME ULTRAVIOLET RADIATION
FLUIDS
GASES
IONIZATION
IONS
NONMETALS
PHOTOEMISSION
PHOTOIONIZATION
PULSES
RADIATIONS
RARE GASES
SCATTERING
SECONDARY EMISSION
SIMULATION
SORPTION
TIME DELAY
ULTRAVIOLET RADIATION
VALENCE