Laser-assisted conductance of molecular wires: Two-photon contributions

I. Urdaneta, A. Keller, O. Atabek, V. Mujica

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We extend to second order in the field intensity a previously obtained first-order expression for the conductance of a tight-binding molecular wire, bridging two electrodes, illuminated by a weak laser. The higher-order term brings in corrections due to two-photon processes that, for low intensities and strong molecule-electrode contacts, are several orders of magnitude smaller than the first-order leading terms. For other ranges of parameters, the second-order correction may be significant mostly due to processes involving the absorption or emission of two photons.

Original languageEnglish (US)
Pages (from-to)460-466
Number of pages7
JournalInternational Journal of Quantum Chemistry
Issue number4
StatePublished - Jun 23 2004
Externally publishedYes


  • Floquet scattering
  • Laser-assisted conductance
  • Molecular wires
  • Multiphoton processes
  • Resonant tunneling

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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