Phase Change Materials for Adjustable Tamm Plasmon Polaritons Resonance

Phase-change materials (PCMs) provide a specific combination of properties. The binary semiconducting chalcogenide Sb 2 S 3 is consider one of the promising candidates, especially its intrinsic high refractive index, low loss and wide bandgap properties, in near infrared (NIR). Here, the Sb 2 S 3 transformation from amorphous to crystal state embedded between the distribute Bragg reflector (DBR) and metal layer. At the interface between DBR and metal layer in specific parameter, Phase-change Tamm plasmon–polariton (PC-TPP) resonance could be produce. The PC-TPP resonance has a 70 nm modulation wavelength. Also, the resonance achieves around 100 nm-shifted in NIR, depending on oblique angles.