Resonant laser excitation of molecular wires

Details Resonant laser excitation of molecular wires Resonant laser excitation of molecular wires

2002-09-17

arxiv.org/abs/physics/0209060v1

Israel J. Chem. 42, 135 (2002)

Physics

Chemical Physics

8 pages, 4 figures

Scientific paper

We investigate the influence of external laser excitations on the average current through bridged molecules. For the computation of the current, we use a numerically very efficient formalism that is based on the Floquet solutions of the time-dependent molecule Hamiltonian. It is found that the current as a function of the laser frequency exhibits characteristic peaks originating from resonant excitations of electrons to bridge levels which are unoccupied in the absence of the radiation. The electrical current through the molecule can exhibit a drastic enhancement by several orders of magnitude.

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