Optical properties of opaline photonic crystals covered by phase-change material Ge${}_2$Sb${}_2$Te${}_5$

Sergey A. Dyakov, Nikolay A. Gippius, Mikhail M. Voronov +4

The physical origin of resonant Wood's anomalies in the reflection spectra of three-dimensional (3D) opaline photonic crystals covered with Ge${}_2$Sb${}_2$Te${}_5$ (GST225) is discussed…