A 1D stratified model applied to the reflection spectra of an opal as a prototype of a photonic crystal and extension to a resonant infiltration

摘要

A one-dimensional stratified effective index model permits to evaluate quantitatively the major properties of reflection spectra of an opal deposited on a substrate. The interface with the substrate is essential, and reveals a general problem for the optics of a photonic crystal. It is successfully extended to a resonant infiltration situation.