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arXiv · 1212.3728

Enhancement of strong-field multiple ionization in the vicinity of the conical intersection in 1,3-cyclohexadiene ring opening

Vladimir S. Petrovic·Sebastian Schorb·Jaehee Kim·James White·James P. Cryan·J. Michael Glownia·Lucas Zipp·Douglas Broege·Shungo Miyabe·Hongli Tao·Todd Martinez·Philip H. Bucksbaum
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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.

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Vladimir S. Petrovic, Sebastian Schorb, Jaehee Kim, James White, James P. Cryan, J. Michael Glownia, Lucas Zipp, Douglas Broege, Shungo Miyabe, Hongli Tao, Todd Martinez, Philip H. Bucksbaum. 2012-12-15. Enhancement of strong-field multiple ionization in the vicinity of the conical intersection in 1,3-cyclohexadiene ring opening. https://doi.org/10.1063/1.4829766

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