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Ultrasound Sensing with a Photonic Crystal Slab

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Abstract

We experimentally demonstrate a compact architecture for ultrasound acoustic sensing based upon a photonic crystal slab (PCS) fabricated on top of a thin mechanically pliable silicon substrate. A noise-equivalent pressure of 2.0 kPa (0.072 kPa/p Hz) at 5 MHz is observed.

© 2018 The Author(s)

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