Tamm plasmon crystals integrated with ultrathin antimony trisulfide achieves reversible/ tunable color filtering across the visible spectrum

https://www.eurekalert.org/news-releases/1090738

"dynamically tunes by inducing phase transitions between antimony trisulfide's amorphous/ crystalline states by varying thickness using thermal/ optical activations... 5-layer stack silicon dioxide/ zinc sulfide films on silicon substrate, 10-nm-thick antimony trisulfide layer, 15-nm-thick silver film... resonance wavelength shifted 50 nm, enabling different colors: amorphous 530 nm/ fuchsia color, crystalline 560 nm/ blue-violet... incidence angle/ polarization insensitive... no complex lithographic techniques, energy efficient"