Abstract
In this work, we study how to use two-dimensional metallic hole arrays for three harmonic generation. After he interaction of electromagnetic waves with metal and dielectric, plasmonic would be produced. We hope we can take advantage of plasmonic to enhance nonlinear effect of the metal. Therefore we do simulation analysis by using the FDTD method and verify the results. In the experiment, we use thermal evaporation to coat the gold film upon to the substrate. We make the structure by using focused ion beam. A pulse laser is used at 1560 nm wavelength and roughly 60 fs pulse duration. Its repetition rate is 80MHz and its average power is 110 mW. We are using the self-set up imaging system to measure nonlinear signal and confirm the one is third harmonic generation by power relation.