Terahertz pulse generation via optical rectification in photonic crystal microcavities

A. Di Falco, C. Conti, and G. Assanto

Opt. Lett. 30, 1174-1176 (2005)


Using a three-dimensional fully vectorial nonlinear time-domain analysis, we numerically investigate generation of terahertz radiation by pumping a photonic crystal microcavity out of resonance. High quality factors and a quadratic susceptibility lead to few-cycle terahertz pulses via optical rectification. Material dispersion as well as linear and nonlinear anisotropy is fully accounted for.