title: Enhancement of strong-field multiple ionization in the vicinity of the conical intersection in 1,3-cyclohexadiene ring opening.
abstract: Nonradiative energy dissipation in electronically excited polyatomic molecules proceeds through conical intersections, loci of degeneracy between electronic states. We observe a marked enhancement of laser-induced double ionization in the vicinity of a conical intersection during a non-radiative transition. We measured double ionization by detecting the kinetic energy of ions released by laser-induced strong-field fragmentation during the ring-opening transition between 1,3-cyclohexadiene and 1,3,5-hexatriene. The enhancement of the double ionization correlates with the conical intersection between the HOMO and LUMO orbitals.
authors: Department of Physics, Stanford University, Stanford, California 94305, USA.
authors: Vladimir S
authors: VS
authors: Petrovic
authors: Sebastian
authors: S
authors: Schorb
authors: Jaehee
authors: J
authors: Kim
authors: James
authors: J
authors: White
authors: James P
authors: JP
authors: Cryan
authors: J Michael
authors: JM
authors: Glownia
authors: Lucas
authors: L
authors: Zipp
authors: Douglas
authors: D
authors: Broege
authors: Shungo
authors: S
authors: Miyabe
authors: Hongli
authors: H
authors: Tao
authors: Todd
authors: T
authors: Martinez
authors: Philip H
authors: PH
authors: Bucksbaum