Theory of Optical Rectification Effect in Metallic Thin Film with Periodic Modulation
arXiv:1408.2394 · doi:10.1103/PhysRevA.95.033844
Abstract
We conducted theoretical and numerical investigations of the optical rectification (OR) effect in metallic structures with periodic modulation. A new formulation of the OR effect is presented, and the mechanism by which the OR effect is generated, which has been a controversial issue in previous studies, is clarified. We reveal that the OR effect is strongly enhanced by a combination of spatial variation of the metallic structure and local electric field enhancement. Our theory was numerically evaluated and agreed fairly well with experiment.
10 pages, 5 figures