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Dual-Grating Meta-Structure Optimized for Perfect Narrow-Band Absorption in an Ultrathin Absorber for Tunable Sensing Applications

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Abstract

We introduce a 5µm-thick meta-structure design showing ~100% ultra-narrow, angular-sensitive resonant absorptance, MWIR peaked with Q ≈ 2650 for tunable sensing applications. Light trapping inside a 22nm absorber is visualized by Poynting vector vortex topology.

© 2020 The Author(s)

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Poster Presentation

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