High-order above-threshold ionization with few-cycle pulse: a meter of the absolute phase
نویسندگان
چکیده
منابع مشابه
Enhancing high-order above-threshold dissociation of H2+ beams with few-cycle laser pulses.
High-order (three-photon or more) above-threshold dissociation (ATD) of H(2)(+) has generally not been observed using 800 nm light. We demonstrate a strong enhancement of its probability using intense 7 fs laser pulses interacting with beams of H(2)(+), HD(+), and D(2)(+) ions. The mechanism invokes a dynamic control of the dissociation pathway. These measurements are supported by theory that a...
متن کاملLaser-induced substructures in above-threshold-ionization spectra from intense few-cycle laser pulses
M. Wickenhauser, X. M. Tong, and C. D. Lin J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506-2604, USA Institute for Theoretical Physics, Vienna University of Technology, A-1040 Vienna, Austria Institute of Materials Science, Graduate School of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan and Cen...
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The strong-field approximation, amended so as to allow for rescattering, is used to calculate high-order above-threshold ionization (ATI) spectra. The single-active-electron binding potential is modelled by a zero-range potential. The emphasis is on enhancements of groups of ATI peaks that occur for sharply defined laser intensities. The enhancements are traced to multiphoton resonance with the...
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A versatile semiclassical approximation for intense laser-atom processes is presented. This uniform approximation is no more complicated than the frequently used multidimensional saddle-point approximation and far superior, since it applies for all energies, both close to as well as away from the classical cutoffs. In the latter case, it reduces to the standard saddle-point approximation. The u...
متن کاملHigh-order above-threshold dissociation of molecules
Electrons bound to atoms or molecules can simultaneously absorb multiple photons via the above-threshold ionization featured with discrete peaks in the photoelectron spectrum on account of the quantized nature of the light energy. Analogously, the above-threshold dissociation of molecules has been proposed to address the multiple-photon energy deposition in the nuclei of molecules. In this case...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2003
ISSN: 1094-4087
DOI: 10.1364/oe.11.001418