Energetics at extremes in Coulomb explosion of large finite systems

Isidore Last, Joshua Jortner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Novel features of the dynamics and energetics of clusters and nanodroplets driven by ultraintense, femtosecond, near-infrared laser pulses pertain to the establishment of energetic records for Coulomb explosion. Theoretical- computational studies demonstrated the attainment of table-top production of deuterons in the energy range of 1-10 MeV by extreme Coulomb explosion of deuterium nanodroplets/microdroplets with the initial size domain 100-1000 nm (number of constituents 5 × 10 8-10 11), which were driven by superintense lasers with peak intensities of 10 17-10 20 W cm -2. This ultrahigh energy range establishes an energetic record for chemical dynamics. New aspects of ultraintense laser-nanostructure interactions involve laser intensity attenuation within the nanodroplet/microdroplet, and a proper treatment of the coupled system with the nanostructure size being comparable to the laser wavelength. Attenuation effects determine an upper size limit of 1 μm of the nanodroplet/microdroplet for useful extreme Coulomb explosion with an energetic upper limit of 10 MeV for deuterons produced by this table-top process.

Original languageEnglish
Pages (from-to)218-223
Number of pages6
JournalChemical Physics
Volume399
DOIs
StatePublished - 3 May 2012

Keywords

  • Attenuation effects
  • Coulomb explosion
  • Nanodroplets
  • Ultraintense near-infrared lasers

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