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Ultranarrow-band metagrating absorbers for sensing and modulation

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Abstract

An asymmetric metagrating structure with an ultranarrow bandwidth of 0.28 nm at 1.55 μm is proposed. Sensing with figure-of-merit of 1333.33 RIU−1 and electro-optic modulation with dynamic range of 15.52 dB are numerically demonstrated.

© 2019 The Author(s)

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