Wigner delays in molecular ionization

Wigner delays in molecular ionization

A snippet from some theory work in progress on time delays in molecular photoionization. The image below shows the energy and angle-resolved cross-section (surface topography) and Wigner delay (colour map) over a 40 eV range for CO. Unsurprisingly, for a molecular scatterer (albeit a simple heteronuclear diatomic) the map is quite complicated! Here the delays range from -200 to +200 attoseconds, and peak at the Carbon end of the molecule.

Wigner delays in CO

More on this soon… the paper is almost ready…


UPDATE Dec. 2015

Now on the arXiv:

Time Delay in Molecular Photoionization

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

arXiv 1512.03788, 2015