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Q: Fachverband Quantenoptik und Photonik
Q 40: Poster – Photonics
Q 40.5: Poster
Wednesday, March 4, 2026, 17:00–19:00, Philo 1. OG
Light modulation in electrically switchable metasurfaces using organic electro-optical materials — •Paul Bingel1, Monika Ubl1, Masis Sirim2, Patrick Kern2, Stefan Bräse2, and Harald Gießen1 — 14th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany — 2Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Germany
Classical electro-optic materials, including liquid crystals, transition-metal oxides, and conducting polymers, are widely used in display technologies, adaptive optics, and tunable photonic systems. Recently developed organic-electro-optic (OEO) materials have demonstrated coefficients more than an order of magnitude higher than those of conventional systems. This advancement enables the integration of plasmonic metasurfaces with the high-performance OEO chromophore JRD1 to realize electrically switchable devices based on the Pockels effect. In this presentation, we demonstrate that a gold metasurface coated with JRD1 exhibits strong and fast electro-optic tunability. By tailoring the metasurface geometry, we achieve exceptionally high transmission modulation in the infrared, particularly at technologically relevant telecom wavelengths. These active hybrid structures offer a promising route toward compact, efficient, and reconfigurable components for next-generation photonics and telecommunications.
Keywords: Plasmonic metasurfaces; Switchable metasurfaces; Organic electro optic materials; Light Modulation; Pockels Effect