  Photoelectron circular dichroism (PECD) in different regimes of multiphoton
ionization of fenchone is studied theoretically using the time-dependent single
center method. In particular, we investigate the chiral response to the
one-color multiphoton or strong-field ionization by circularly polarized 400
and 814 nm optical laser pulses or 1850 nm infrared pulse. In addition, the
broadband ionization by short coherent circularly polarized 413-1240 nm
spanning pulse is considered. Finally, the two-color ionization by the
phase-locked 400 and 800 nm pulses, which are linearly polarized in
mutually-orthogonal directions, is investigated. The present computational
results on the one-color multiphoton ionization of fenchone are in agreement
with the available experimental data. For the ionization of fenchone by
broadband and bichromatic pulses, the present theoretical study predicts
substantial multiphoton PECDs.
