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Focusing a nano-earthquake

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Abstract

Plasmonic nanoantennas are optomechanical transducers for converting laser pulses into surface hypersound waves traveling through the underlying substrate, similar to the seismic waves after an earthquake. Here we introduce a novel design consisting of an array of plasmonic nanodisks allowing the focusing of the generated waves in the nanoscale.

© 2022 The Author(s)

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