2024
DOI: 10.3389/fphy.2024.1512077
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Broadband continuous absorber based on dual-mode coupling resonance

Haixia Liu,
Yu Liu,
Wenjie Li
et al.

Abstract: The continuous detection of visible to near-infrared light is a critical focus in optics due to its broad application value. To address this challenge, we present a graphene-based gradient groove metasurface (GGM) that enables efficient broadband absorption by simultaneously exciting surface plasmon polariton (SPP) resonance and Fabry-Pérot (FP)-like cavity resonance within multiple grooves. This dual-mode coupling effectively mitigates SPP losses and overcomes the size constraints of FP cavities, allowing for… Show more

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