  We propose a new approach to coherent control of transport via molecular
junctions, which bypasses several of the hurdles to experimental realization of
optically manipulated nanoelectronics noted in the previous literature. The
method is based on the ap-plication of intrinsic semiconductor contacts and
optical frequencies below the semiconductor bandgap. It relies on a simple and
general concept, namely the controllable photonic replication of molecular
levels through the dipole driving the molecular bridge by an electromagnetic
field. We predict the effect of coherent destruction of induced tunneling that
extends the certain effect of coherent destruction of tunneling. Our results
illustrate the potential of semiconductor contacts in coherent control of
photocurrent.

Mesoscale and Nanoscale Physics