Electrically Tunable Strongly Coupled Epsilon-Near-Zero and Plasmonic Hybrid Mode

Abstract

<p>Achieving active tunability of light and matter interaction is of great interest as it opens a new avenue for exploring various high-performance photonic devices. In this prospect, developing a novel way to achieve active tuning of a strongly coupled system is vital. Here, we demonstrated an active tuning of the coupling strength in a strongly coupled system comprised of a thin ITO film as epsilon-near-zero (ENZ) material and gold nanorods as plasmonic resonators. The incorporation of these two components exhibits strong coupling that manifests as spectral splitting in the transmission spectra in the near-infrared spectral range.</p>