Coulomb explosions of molecules in intense laser radiation

Research output: Contribution to conferencePaper

Abstract

Studies of the H2 molecule using resonantly enhanced multiphoton ionization by multicolor narrowband tunable radiation are discussed. Hydrogen molecules are observed in a loosely collimated molecular beam with a density of approximately 1012/cm3 , formed when they diffuse through a multicollimator assembly. They are ionized by the 308-nm unpolarized radiation of an XeCl excimer laser, which gives 400 per mJ/28-ns pulse. The results show a tail in the kinetic energy distribution of H+ fragments with energies in the 9.8-12.5 eV range. The energy of the high-energy tail of ions agrees with the result of a simple calculation based on direct stripping of both electrons by 14 photons followed by a Coulomb explosion from the range of ground-state internuclear separations of H2. Some results on molecular nitrogen agree with this simple calculation.

Original languageEnglish (US)
Number of pages1
StatePublished - Dec 1 1989
EventQuantum Electronics and Laser Science Conference - Baltimore, MD, USA
Duration: Apr 24 1989Apr 28 1989

Other

OtherQuantum Electronics and Laser Science Conference
CityBaltimore, MD, USA
Period4/24/894/28/89

ASJC Scopus subject areas

  • Engineering(all)

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    Nayfeh, M. H. (1989). Coulomb explosions of molecules in intense laser radiation. Paper presented at Quantum Electronics and Laser Science Conference, Baltimore, MD, USA, .