Nonlinear Effects in Photonic Materials - Abstract

Genty, Goëry

Beyond Supercontinuum Generation: Extreme Nonlinear Propagation in Photonic Crystal Fiber

We describe generalized nonlinear envelope equation modeling of sub-cycle dynamics on the underlying ultrafast electric field carrier during one-dimensional propagation in fused silica. Generalized envelope equation simulations are compared with numerical integration of Maxwell?s equations, and quantitative agreement is obtained in the presence of shock dynamics that exhibit carrier steepening on a sub-50 attosecond timescale. In addition, by separating the effects of self-phase modulation and third harmonic generation, we examine the relative contribution of these effects in supercontinuum generation in fused silica nanowire waveguides.