2:45 PM - 3:15 PM
[19p-H135-5] Very intense terahertz electric fields induced at atomic-scale nanogap electrodes and their effects on carrier dynamics in nanostructures
Keywords:terahertz,nanogap electrodes,single molecules
We have investigated the electron transport in single molecule transistors under terahertz (THz) radiation. By employing an antenna structure with a sub-nm-wide gap, we concentrate the THz radiation onto a single molecule. THz-induced photon-assisted tunneling in the single molecule transistors is observed. The THz field induced at the molecule exceeds 100 kV/cm, which is enhanced by a factor of ~105 from the field in the free space.