High-energy cutoff in the spectrum of strong-field nonsequential double ionization

Jonathan Parker, B.J.S. Doherty, Kenneth Taylor, K.D. Schultz, C.I. Blaga, L.F. DiMauro

Research output: Contribution to journalArticlepeer-review

206 Citations (Scopus)


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(2) and 1.1 PW/cm(2), where PW equivalent to 10(15) W/cm(2)). Numerical solutions of the full-dimensional time-dependent helium Schrodinger equation show excellent agreement with the experimental measurements. The high-energy portion of the two-electron energy distributions reveals an unexpected 5U(p) cutoff for the double ionization (DI) process and leads to a proposed model for DI below the quasiclassical threshold.
Original languageEnglish
Article number133001
Pages (from-to)133001-1-133001-4
Number of pages4
JournalPhysical Review Letters
Issue number13
Publication statusPublished - Apr 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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