  We consider the ionization of neon induced by a femtosecond laser pulse
composed of overlapping, linearly polarized bichromatic extreme ultraviolet and
infrared fields. In particular, we study the effects of the infrared light on a
two-pathway ionization scheme for which Ne 2s22p53s1P is used as intermediate
state. Using time-dependent calculations, supported by a theoretical approach
based on the strong-field approximation, we analyze the ionization probability
and the photoelectron angular distributions associated with the different
sidebands of the ionization spectrum. Complex oscillations of the angular
distribution anisotropy parameters as a function of the infrared light
intensity are revealed. Finally, we demonstrate that coherent control of the
asymmetry is achievable by tuning the infrared frequency to a nearby electronic
transition.
