Design of tunable acoustic metamaterials with periodic piezoelectric microstructure
Sign Up to like & getrecommendations! Published in 2020 at "Extreme Mechanics Letters"
DOI: 10.1016/j.eml.2020.100977
Abstract: Abstract An innovative special class of tunable periodic metamaterials is designed, suitable for realizing high-performance acoustic filters. The metamaterial is made up of a phononic crystal coupled to local resonators. Such local resonators consist of… read more here.
Keywords: shunting piezoelectric; tunable acoustic; design tunable; acoustic metamaterials ... See more keywords
The role of material and geometric nonlinearities and damping effects in designing mechanically tunable acoustic metamaterials
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2021.106299
Abstract: Abstract Elastomeric material (as rubber) can be used to design the mechanically tunable acoustic metamaterial (AM) with reversible and repeatable deformation utilizing its geometric and material nonlinearities introduced by the large deformation. Meanwhile, an elastomeric… read more here.
Keywords: geometric nonlinearities; band; material geometric; material ... See more keywords
Epoxy foams with tunable acoustic absorption behavior
Sign Up to like & getrecommendations! Published in 2017 at "Materials Letters"
DOI: 10.1016/j.matlet.2017.02.054
Abstract: Abstract Herein, epoxy foams with tunable acoustic behavior were innovatively fabricated via non-traditional expandable microspheres. By adjusting the preparation parameters, changes in cellular structure from closed cells to partial open cells were observed, which exhibited… read more here.
Keywords: absorption; foams tunable; tunable acoustic; acoustic absorption ... See more keywords
Tunable acoustic hooks from Janus cylinder
Sign Up to like & getrecommendations! Published in 2021 at "Results in physics"
DOI: 10.1016/j.rinp.2021.104134
Abstract: Abstract In this paper we present a new way to obtain tunable acoustic hooks. The breaking of the symmetry of the material composition is used for the generation of acoustic hooks from Janus cylinders. This… read more here.
Keywords: janus cylinder; hooks janus; acoustic hooks; tunable acoustic ... See more keywords
Voltage-tunable acoustic metasheet with highly asymmetric surfaces
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.5005603
Abstract: We report the experimental demonstration of a voltage-tunable acoustic metasheet device with two highly asymmetric surfaces, made by combining two decorated membrane resonators (DMRs) separated by a sealed air column. The front surface of the… read more here.
Keywords: voltage; tunable acoustic; voltage tunable; metasheet ... See more keywords
Controllable asymmetric transmission via gap-tunable acoustic metasurface
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5023852
Abstract: In this work, we utilize the acoustic gradient metasurface (AGM) of a bilayer configuration to realize the controllable asymmetric transmission. Relying on the adjustable gap between the two composing layers, the metasurface could switch from… read more here.
Keywords: gap; tunable acoustic; transmission; controllable asymmetric ... See more keywords
Fast axial-scanning photoacoustic microscopy using tunable acoustic gradient lens.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.007349
Abstract: An optical-resolution photoacoustic microscope (OR-PAM) with capability of fast axial-scanning was developed by using a tunable acoustic gradient (TAG) lens. The TAG lens was designed to continuously changing the focal plane of OR-PAM by modulating… read more here.
Keywords: tunable acoustic; acoustic gradient; fast axial; microscopy ... See more keywords
Multi-focal laser processing in transparent materials using an ultrafast tunable acoustic lens.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.447854
Abstract: Fast and versatile alteration of focal positions is critical for applications including selective volumetric modification and parallel laser processing. In this Letter, we implement and characterize an ultrafast, variable focal system using a tunable acoustic… read more here.
Keywords: laser; tunable acoustic; multi focal; laser processing ... See more keywords