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A new study published in Light: Science & Applications reports a major advance in terahertz (THz) technology, achieving for the first time 100% amplitude modulation depth using graphene-based tunable capacitance metamaterials.

The research demonstrates a device capable of completely switching THz waves on and off, delivering over 45 dB modulation and reconfiguration speeds up to 30 MHz — performance unmatched by previous THz modulators.

Dr Riccardo Degl'Innocenti, from the Centre for Electronics at Queen Mary University of London, contributed to the study through expert input on device design and manuscript development, helping align the work with real-world THz system applications.

This breakthrough paves the way for ultra-fast wireless communication, adaptive imaging, and next-generation sensing technologies, strengthening Queen Mary's role in leading-edge metamaterials and graphene research.

Read the paper: www.nature.com/articles/s41377-025-01945-4