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3 October 2024 Acoustoplasmonic metasurface for tunable acoustic wavefront shaping with polarized light
Julia Holland, Jiuk Byun, Nicholas Boechler, Lisa V Poulikakos
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Proceedings Volume PC13111, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXII; PC131111E (2024) https://doi.org/10.1117/12.3027851
Event: Nanoscience + Engineering, 2024, San Diego, California, United States
Abstract
Optical and acoustic metasurfaces have been extensively studied for wavefront shaping, including lensing, beam steering, and holography. This work aims to explore a new field of acoustoplasmonic metasurfaces that utilize the photoacoustic effect in gold nanoparticles to generate high-frequency acoustic waves via optical excitation. We leverage the extreme polarization-dependence of absorption efficiency in nanoellipsoids to introduce acoustic wavefront tunability, which opens the door to applications in super-resolution acoustic imaging.
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Julia Holland, Jiuk Byun, Nicholas Boechler, and Lisa V Poulikakos "Acoustoplasmonic metasurface for tunable acoustic wavefront shaping with polarized light", Proc. SPIE PC13111, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXII, PC131111E (3 October 2024); https://doi.org/10.1117/12.3027851
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KEYWORDS
Acoustics
Gold nanoparticles
Wavefronts
Acoustic waves
Design
Polarized light
Dielectric polarization
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