Strong Field Electron Emission from Fixed in Space H{sub 2}{sup +} Ions

Journal Article · Fri Sep 30 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.143004· OSTI ID:21611798

Odenweller, M; Vredenborg, A; Cole, K; Pahl, K; Titze, J; Schmidt, L Ph. H.; Jahnke, T; Doerner, R ^[1]; Takemoto, N; Becker, A ^[2]

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1. Institut fuer Kernphysik, J. W. Goethe-Universitaet, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main (Germany)
2. JILA and Department of Physics, University of Colorado, 440 UCB, Boulder, Colorado 80309-0440 (United States)

We have studied electron emission from the H{sub 2}{sup +} ion by a circularly polarized laser pulse (800 nm, 6x10{sup 14} W/cm{sup 2}). The electron momentum distribution in the body fixed frame of the molecule is experimentally obtained by a coincident detection of electrons and protons. The data are compared to a solution of the time-dependent Schroedinger equation in two dimensions. We find radial and angular distributions which are at odds with the quasistatic enhanced ionization model. The unexpected momentum distribution is traced back to a complex laser-driven electron dynamics inside the molecule influencing the instant of ionization and the initial momentum of the electron.

• OSTI ID: 21611798
• Journal Information: Physical Review Letters, Vol. 107, Issue 14; Other Information: DOI: 10.1103/PhysRevLett.107.143004; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR DISTRIBUTION
ELECTRON EMISSION
ELECTRONS
HYDROGEN IONS 2 PLUS
IONIZATION
LASERS
MATHEMATICAL SOLUTIONS
PROTONS
SCHROEDINGER EQUATION
TIME DEPENDENCE
BARYONS
CATIONS
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ELEMENTARY PARTICLES
EMISSION
EQUATIONS
FERMIONS
HADRONS
HYDROGEN IONS
IONS
LEPTONS
MOLECULAR IONS
NUCLEONS
PARTIAL DIFFERENTIAL EQUATIONS
WAVE EQUATIONS