Related Experiment Video
Updated: Jan 8, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Localization of light and second-order nonlinearity enhancement in weakly disordered one-dimensional photonic
Daniele Faccio1, Francesca Bragheri
1INFM and Department of Physics & Mathematics, University of Insubria, Via Valleggio 11, I-22100 Como, Italy. daniele.faccio@uninsubria.it
Abstract:
We show how one-dimensional photonic crystal structures which suffer from a weak random disorder in the layer lengths may give rise to strong localization of light. Using the transfer matrix method we numerically study the effects of this localization in media with a second-order nonlinearity. Localization has a deep impact on the second-harmonic generation efficiency and may give rise to very strong enhancement in correspondence to the localized wavelengths.

