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Title: High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization

Abstract

Electron energy distributions of singly and doubly ionized helium in an intense 390 nm laser field have been measured at two intensities (0.8 PW/cm{sup 2} and 1.1 PW/cm{sup 2}, where PW{identical_to}10{sup 15} W/cm{sup 2}). Numerical solutions of the full-dimensional time-dependent helium Schroedinger equation show excellent agreement with the experimental measurements. The high-energy portion of the two-electron energy distributions reveals an unexpected 5U{sub p} cutoff for the double ionization (DI) process and leads to a proposed model for DI below the quasiclassical threshold.

Authors:
; ;  [1]; ; ;  [2]
  1. DAMTP, Queen's University Belfast, Belfast, BT7 1NN (United Kingdom)
  2. Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)
Publication Date:
OSTI Identifier:
20775154
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 13; Other Information: DOI: 10.1103/PhysRevLett.96.133001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; ELECTRON SPECTRA; ELECTRONS; ENERGY SPECTRA; HELIUM; LASER RADIATION; NUMERICAL SOLUTION; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; SCHROEDINGER EQUATION; TIME DEPENDENCE

Citation Formats

Parker, J.S., Doherty, B.J.S., Taylor, K.T., Schultz, K.D., Blaga, C.I., and DiMauro, L.F.. High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.133001.
Parker, J.S., Doherty, B.J.S., Taylor, K.T., Schultz, K.D., Blaga, C.I., & DiMauro, L.F.. High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization. United States. doi:10.1103/PhysRevLett.96.133001.
Parker, J.S., Doherty, B.J.S., Taylor, K.T., Schultz, K.D., Blaga, C.I., and DiMauro, L.F.. Fri . "High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization". United States. doi:10.1103/PhysRevLett.96.133001.
@article{osti_20775154,
title = {High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization},
author = {Parker, J.S. and Doherty, B.J.S. and Taylor, K.T. and Schultz, K.D. and Blaga, C.I. and DiMauro, L.F.},
abstractNote = {Electron energy distributions of singly and doubly ionized helium in an intense 390 nm laser field have been measured at two intensities (0.8 PW/cm{sup 2} and 1.1 PW/cm{sup 2}, where PW{identical_to}10{sup 15} W/cm{sup 2}). Numerical solutions of the full-dimensional time-dependent helium Schroedinger equation show excellent agreement with the experimental measurements. The high-energy portion of the two-electron energy distributions reveals an unexpected 5U{sub p} cutoff for the double ionization (DI) process and leads to a proposed model for DI below the quasiclassical threshold.},
doi = {10.1103/PhysRevLett.96.133001},
journal = {Physical Review Letters},
number = 13,
volume = 96,
place = {United States},
year = {Fri Apr 07 00:00:00 EDT 2006},
month = {Fri Apr 07 00:00:00 EDT 2006}
}
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