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In this work, an active tuning of the coupling strength in a strongly coupled system comprised of a thin epsilon‐near‐zero material and gold nanorods as plasmonic resonators is demonstrated. A… Click to show full abstract
In this work, an active tuning of the coupling strength in a strongly coupled system comprised of a thin epsilon‐near‐zero material and gold nanorods as plasmonic resonators is demonstrated. A novel gating scheme is developed where an ionic liquid is employed to bias the coupled system and tune the coupling in transmission mode. A significant tuning of the coupled resonance up to 30 nm is observed by changing the bias voltages from 0 to 4.5 V. This control mechanism on strong coupling opens exciting opportunities for various disruptive applications by offering advanced control and tunability on strongly coupled systems.
Journal Title: Advanced Optical Materials
Year Published: 2021
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