Temporal separation of H{sub 2} double-ionization channels using intense ultrashort 10-fs laser pulses

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787047

Saugout, S; Cornaggia, C ^[1]

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1. CEA Saclay, Direction des Sciences de la Matiere, Service des Photons, Atomes et Molecules, Batiment 522, F-91 191 Gif-Sur-Yvette (France)

Double ionization channels of H{sub 2} are separated in the time domain using ultrashort 10-fs laser pulses in the 10{sup 13}-10{sup 15} W cm{sup -2} intensity range. Charge resonance enhanced ionization does not contribute anymore to double ionization because the H{sub 2}{sup +} ion does not have enough time to stretch up to the critical internuclear distance. Using a pump-probe excitation scheme, this process is shown to be very sensitive for the detection of pre- and post-pulses situated at a few tens of femtoseconds from the maximum pulse envelope.

• OSTI ID: 20787047
• Journal Information: Physical Review. A, Vol. 73, Issue 4; Other Information: DOI: 10.1103/PhysRevA.73.041406; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DETECTION
DISTANCE
EXCITATION
HYDROGEN
HYDROGEN IONS 2 PLUS
LASER RADIATION
MOLECULES
MULTI-PHOTON PROCESSES
PHOTOIONIZATION
PHOTON-MOLECULE COLLISIONS
PULSES
RESONANCE
VELOCITY