6533b829fe1ef96bd128a52b
RESEARCH PRODUCT
Attosecond control of dissociative ionization of O2molecules
Arnaud RouzéePer JohnssonPer JohnssonW. SiuFrancesca CalegariDanielle DowekAngel RubioMatteo LucchiniMarcus VrakkingG. GademannRobert R. LuccheseU. De GiovanniniF. LepineF. KelkensbergHirohiko Konosubject
PhysicsInfraredAtom and Molecular Physics and OpticsWave packetAttosecondAstrophysics::Cosmology and Extragalactic AstrophysicsElectronic structureMolecular physicsPotential energySettore FIS/03 - Fisica Della MateriaAtomic and Molecular Physics and OpticsTime resolved fragmentationAtomic and Molecular PhysicsExtreme ultravioletIonizationPhysics::Atomic and Molecular ClustersAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary Astrophysicsand OpticsAtomic physicsAdiabatic processAstrophysics::Galaxy Astrophysicsdescription
We demonstrate that dissociative ionization of O(2) can be controlled by the relative delay between an attosecond pulse train (APT) and a copropagating infrared (IR) field. Our experiments reveal a dependence of both the branching ratios between a range of electronic states and the fragment angular distributions on the extreme ultraviolet (XUV) to IR time delay. The observations go beyond adiabatic propagation of dissociative wave packets on IR-induced quasistatic potential energy curves and are understood in terms of an IR-induced coupling between electronic states in the molecular ion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-12-14 | Physical Review A |