Details
| Original language | English |
|---|---|
| Article number | 094005 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 51 |
| Issue number | 9 |
| Early online date | 17 Apr 2018 |
| Publication status | Published - 14 May 2018 |
Abstract
Photoelectron momentum distributions from strong-field ionization are calculated by numerical solution of the one-electron time-dependent Schrödinger equation for a model atom including effects beyond the electric dipole approximation. We focus on the high-energy electrons from rescattering and analyze their momentum component along the field propagation direction. We show that the boundary of the calculated momentum distribution is deformed in accordance with the classical three-step model including the beyond-dipole Lorentz force. In addition, the momentum distribution exhibits an asymmetry in the signal strengths of electrons emitted in the forward/backward directions. Taken together, the two non-dipole effects give rise to a considerable average forward momentum component of the order of 0.1 a.u. for realistic laser parameters.
Keywords
- non-dipole effects, rescattering, strong-field ionization, time-dependent Schrodinger equation
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 51, No. 9, 094005, 14.05.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High-order above-threshold ionization beyond the electric dipole approximation
AU - Brennecke, Simon
AU - Lein, Manfred
N1 - Funding Information: We thank Nicolas Eicke for useful discussions. SB thanks the Studienstiftung des deutschen Volkes for financial support.
PY - 2018/5/14
Y1 - 2018/5/14
N2 - Photoelectron momentum distributions from strong-field ionization are calculated by numerical solution of the one-electron time-dependent Schrödinger equation for a model atom including effects beyond the electric dipole approximation. We focus on the high-energy electrons from rescattering and analyze their momentum component along the field propagation direction. We show that the boundary of the calculated momentum distribution is deformed in accordance with the classical three-step model including the beyond-dipole Lorentz force. In addition, the momentum distribution exhibits an asymmetry in the signal strengths of electrons emitted in the forward/backward directions. Taken together, the two non-dipole effects give rise to a considerable average forward momentum component of the order of 0.1 a.u. for realistic laser parameters.
AB - Photoelectron momentum distributions from strong-field ionization are calculated by numerical solution of the one-electron time-dependent Schrödinger equation for a model atom including effects beyond the electric dipole approximation. We focus on the high-energy electrons from rescattering and analyze their momentum component along the field propagation direction. We show that the boundary of the calculated momentum distribution is deformed in accordance with the classical three-step model including the beyond-dipole Lorentz force. In addition, the momentum distribution exhibits an asymmetry in the signal strengths of electrons emitted in the forward/backward directions. Taken together, the two non-dipole effects give rise to a considerable average forward momentum component of the order of 0.1 a.u. for realistic laser parameters.
KW - non-dipole effects
KW - rescattering
KW - strong-field ionization
KW - time-dependent Schrodinger equation
UR - http://www.scopus.com/inward/record.url?scp=85047982506&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/aab91f
DO - 10.1088/1361-6455/aab91f
M3 - Article
AN - SCOPUS:85047982506
VL - 51
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
IS - 9
M1 - 094005
ER -