Evidence of Excitonic Optical Tamm States using Molecular Materials

TL;DR

This paper reports the first experimental observation of excitonic optical Tamm states at the interface of dielectric multilayers and organic dye-doped polymers, highlighting the potential of organic excitonic materials for nanoscale light control.

Contribution

First experimental demonstration of excitonic optical Tamm states supported by organic dye-doped layers at dielectric interfaces.

Findings

Identification of excitonic Tamm states through dispersion and field profile analysis

Confirmation of metal-like optical properties of aggregated dye molecules

Potential for organic materials in nanoscale photonic applications

Abstract

We report the first experimental observation of an Excitonic Optical Tamm State supported at the interface between a periodic multilayer dielectric structure and an organic dye-doped polymer layer. The existence of such states is enabled by the metal-like optical properties of the excitonic layer based on aggregated dye molecules. Experimentally determined dispersion curves, together with simulated data, including field profiles, allow us to identify the nature of these new modes. Our results demonstrate the potential of organic excitonic materials as a powerful means to control light at the nanoscale, offering the prospect of a new alternative type of nanophotonics based on molecular materials.