title: Electron energy spectrum in laser-induced multiphoton ionization of atoms.
abstract: The energy distribution of the electrons resulting from the multiphoton ionization of air molecules by a focused ruby laser beam has been measured by a time-of-flight method. There appear to be two distinct contributions to the energy spectrum, one from electrons of mean energy below 1 eV and one from electrons of mean energy around 10 eV. Possible reasons for this are discussed.
authors.forename: E A
authors.initials: EA
authors.lastname: Martin
authors.forename: L
authors.initials: L
authors.lastname: Mandel