Emission enhancement in hybrid Tamm plasmon/photonic quasicrystal structure

Abstract

We have theoretically demonstrated that Tamm plasmon structure with photonic quasicrystal instead of usual distributed Bragg reflector can support hybrid Tamm plasmon-like optical eigenstates. The model structure consists of a SiO2/Ta2O5 optical Fibonacci system with a thin silver layer on the top. F7-based hybrid cavity was analyzed by means of calculation reflectivity spectrum and electric field profiles of the localized states. Also, evaluation of the modal Purcell factor for hybrid structure demonstrates significant enhancing of spontaneous decay rate for emitter coupled with Tamm plasmon-like states. The results can be used in fabrication of high-efficient organic-based light emission systems.