Time delay in molecular photoionization

Time delay in molecular photoionization

Update Aug 2016 – On the cover (well, actually this was in May too, but we only just got our print copy!).

JPB cover

Update May 2016Now in J. Phys. B

Original post
New on the arXiv, an exploration of Wigner delays in molecular photoionization.

Time Delay in Molecular Photoionization

P. Hockett, E. Frumker, D.M. Villeneuve, P.B. Corkum

J. Phys. B: At. Mol. Opt. Phys. 49 095602, 2016

arXiv 1512.03788, 2015

Time-delays in the photoionization of molecules are investigated. As compared to atomic ionization, the time-delays expected from molecular ionization present a much richer phenomenon, with a strong spatial dependence due to the anisotropic nature of the molecular scattering potential. We investigate this from a scattering theory perspective, and make use of molecular photoionization calculations to examine this effect in representative homonuclear and hetronuclear diatomic molecules, nitrogen and carbon monoxide. We present energy and angle-resolved maps of the Wigner delay time for single-photon valence ionization, and discuss the possibilities for experimental measurements.

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