Intracycle and intercycle interferences in above-threshold ionization: The time grating

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.021403· OSTI ID:21408168

Arbo, Diego G ^[1]; Ishikawa, Kenichi L ^[2]; Schiessl, Klaus; Persson, Emil; Burgdoerfer, Joachim ^[3]

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1. Institute for Astronomy and Space Physics, IAFE (CONICET-UBA), Casilla de Correo, 67, Sucursal 28, 1428 Buenos Aires (Argentina)
2. Photon Science Center, Graduate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656 (Japan)
3. Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/136, A-1040 Vienna (Austria)

Within a semiclassical description of above-threshold ionization (ATI) we identify the interplay between intracycle and intercycle interferences. The former is imprinted as a modulation envelope on the discrete multiphoton peaks formed by the latter. This allows one to unravel the complex interference pattern observed for the full solution of the time-dependent Schroedinger equation (TDSE) in terms of diffraction at a grating in the time domain. These modulations can be clearly seen in the dependence of the ATI spectra on the laser wavelength. Shifts in energy modulation result from the effect of the long Coulomb tail of the atomic potential.

• OSTI ID: 21408168
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
APPROXIMATIONS
CALCULATION METHODS
COHERENT SCATTERING
DIFFERENTIAL EQUATIONS
DIFFRACTION
EQUATIONS
INTERFERENCE
IONIZATION
LASERS
MATHEMATICAL SOLUTIONS
MODULATION
MULTI-PHOTON PROCESSES
PARTIAL DIFFERENTIAL EQUATIONS
PEAKS
POTENTIALS
SCATTERING
SCHROEDINGER EQUATION
SEMICLASSICAL APPROXIMATION
SPECTRA
TIME DEPENDENCE
WAVE EQUATIONS
WAVELENGTHS