Strongfield ionization of lithium
Abstract
We report photoelectron energy spectra, momentum, and angular distributions for the strongfield single ionization of lithium by 30fs laser pulses. For peak intensities between 10{sup 11} and 10{sup 14} W/cm{sup 2} at a central wavelength of 785 nm, the classical overthebarrier intensity was reached well inside the multiphoton regime. The complete vector momenta of the ionization fragments were recorded by a reaction microscope with a magnetooptically trapped target (MOTREMI). On the theoretical side, the timedependent Schroedinger equation was solved by two independent methods seeking the solution directly on a radial grid. Distinct differences between the results of both calculations and also in comparison with experiment point to a high sensitivity of this reaction with respect to small details, particularly in the description of the Li{sup +} core.
 Authors:
 MaxPlanckInstitut fuer Kernphysik, Saupfercheckweg 1, DE69117 Heidelberg (Germany)
 Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200 (Australia)
 Institute of Nuclear Physics, Moscow State University, Moscow RU119991 (Russian Federation)
 Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311 (United States)
 Publication Date:
 OSTI Identifier:
 21537180
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. A; Journal Volume: 83; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.83.023413; (c) 2011 American Institute of Physics
 Country of Publication:
 United States
 Language:
 English
 Subject:
 74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; COMPARATIVE EVALUATIONS; ENERGY SPECTRA; IONIZATION; LASER RADIATION; LASERS; LITHIUM; LITHIUM IONS; MATHEMATICAL SOLUTIONS; MICROSCOPES; MULTIPHOTON PROCESSES; PEAKS; PULSES; SCHROEDINGER EQUATION; TIME DEPENDENCE; WAVELENGTHS; ALKALI METALS; CHARGED PARTICLES; DIFFERENTIAL EQUATIONS; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELEMENTS; EQUATIONS; EVALUATION; IONS; METALS; PARTIAL DIFFERENTIAL EQUATIONS; RADIATIONS; SPECTRA; WAVE EQUATIONS
Citation Formats
Schuricke, Michael, Zhu Ganjun, Steinmann, Jochen, Simeonidis, Konstantinos, Dorn, Alexander, Ullrich, Joachim, Ivanov, Igor, Kheifets, Anatoli, GrumGrzhimailo, Alexei N., and Bartschat, Klaus. Strongfield ionization of lithium. United States: N. p., 2011.
Web. doi:10.1103/PHYSREVA.83.023413.
Schuricke, Michael, Zhu Ganjun, Steinmann, Jochen, Simeonidis, Konstantinos, Dorn, Alexander, Ullrich, Joachim, Ivanov, Igor, Kheifets, Anatoli, GrumGrzhimailo, Alexei N., & Bartschat, Klaus. Strongfield ionization of lithium. United States. doi:10.1103/PHYSREVA.83.023413.
Schuricke, Michael, Zhu Ganjun, Steinmann, Jochen, Simeonidis, Konstantinos, Dorn, Alexander, Ullrich, Joachim, Ivanov, Igor, Kheifets, Anatoli, GrumGrzhimailo, Alexei N., and Bartschat, Klaus. 2011.
"Strongfield ionization of lithium". United States.
doi:10.1103/PHYSREVA.83.023413.
@article{osti_21537180,
title = {Strongfield ionization of lithium},
author = {Schuricke, Michael and Zhu Ganjun and Steinmann, Jochen and Simeonidis, Konstantinos and Dorn, Alexander and Ullrich, Joachim and Ivanov, Igor and Kheifets, Anatoli and GrumGrzhimailo, Alexei N. and Bartschat, Klaus},
abstractNote = {We report photoelectron energy spectra, momentum, and angular distributions for the strongfield single ionization of lithium by 30fs laser pulses. For peak intensities between 10{sup 11} and 10{sup 14} W/cm{sup 2} at a central wavelength of 785 nm, the classical overthebarrier intensity was reached well inside the multiphoton regime. The complete vector momenta of the ionization fragments were recorded by a reaction microscope with a magnetooptically trapped target (MOTREMI). On the theoretical side, the timedependent Schroedinger equation was solved by two independent methods seeking the solution directly on a radial grid. Distinct differences between the results of both calculations and also in comparison with experiment point to a high sensitivity of this reaction with respect to small details, particularly in the description of the Li{sup +} core.},
doi = {10.1103/PHYSREVA.83.023413},
journal = {Physical Review. A},
number = 2,
volume = 83,
place = {United States},
year = 2011,
month = 2
}

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Strongfield ionization of laserirradiated light homonuclear diatomic molecules: A generalized strongfield approximationlinear combination of atomic orbitals model
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Comment on 'Strongfield ionization of laserirradiated light homonuclear diatomic molecules: A generalized strongfield approximationcombination of atomic orbitals model'
V. I. Usachenko and S.I. Chu [Phys. Rev. A, 71, 063410 (2005)] discuss the molecular strongfield approximation in the velocity gauge formulation and indicate that some of our earlier velocity gauge calculations are inaccurate. Here we comment on the results of Usachenko and Chu. First, we show that the molecular orbitals used by Usachenko and Chu do not have the correct symmetry, and second, that it is an oversimplification to describe the molecular orbitals in terms of just a single linear combination of two atomic orbitals. Finally, some values for the generalized Bessel function are given for comparison.