Second-harmonic generation in graded metallic films
arXiv:physics/0407130 · doi:10.1364/OL.30.000275
Abstract
We study the effective second-harmonic generation (SHG) susceptibility in graded metallic films by invoking the local field effects exactly, and further numerically demonstrate that the graded metallic films can serve as a novel optical material for producing a broad structure in both the linear and SHG response and an enhancement in the SHG signal.
10 pages, 2 EPS figures. Minor revisions