  We develop an electron transport theory for the hybrid system of a
semiconducting carbon nanotube that encapsulates a one-atom-thick metallic
wire. The theory predicts Fano resonances in electron transport through the
system, whereby the interaction of electrons on the wire with nanotube plasmon
generated near-fields blocks some of the wire transmission channels to open up
the new coherent plasmon-mediated channel in the nanotube forbidden gap outside
the wire transmission band. Such a channel makes the entire hybrid system
transparent in the energy domain where neither wire, nor nanotube is
indivudually transparent. This effect can be used to manipulate by the electron
charge transfer in hybrid nanodevices built on metal-semiconductor nanotube
systems.
