Show simple item record

dc.creatorMarzo Pérez, Asieres_ES
dc.creatorDrinkwater, Bruce W.es_ES
dc.date.accessioned2019-07-17T12:13:09Z
dc.date.available2019-07-17T12:13:09Z
dc.date.issued2019
dc.identifier.issn0027-8424 (Print)
dc.identifier.issn1091-6490 (Electronic)
dc.identifier.urihttps://hdl.handle.net/2454/33587
dc.description.abstractAcoustic tweezers use sound radiation forces to manipulate matter without contact. They provide unique characteristics compared with the more established optical tweezers, such as higher trapping forces per unit input power and the ability to manipulate objects from the micrometer to the centimeter scale. They also enable the trapping of a wide range of sample materials in various media. A dramatic advancement in optical tweezers was the development of holographic optical tweezers (HOT) which enabled the independent manipulation of multiple particles leading to applications such as the assembly of 3D microstructures and the probing of soft matter. Now, 20 years after the development of HOT, we present the realization of holographic acoustic tweezers (HAT). We experimentally demonstrate a 40-kHz airborne HAT system implemented using two 256-emitter phased arrays and manipulate individually up to 25 millimetric particles simultaneously. We show that the maximum trapping forces are achieved once the emitting array satisfies Nyquist sampling and an emission phase discretization below π/8 radians. When considered on the scale of a wavelength, HAT provides similar manipulation capabilities as HOT while retaining its unique characteristics. The examples shown here suggest the future use of HAT for novel forms of displays in which the objects are made of physical levitating voxels, assembly processes in the micrometer and millimetric scale, as well as positioning and orientation of multiple objects which could lead to biomedical applications.en
dc.description.sponsorshipThis project has been funded by the UK Engineering and Physical Science Research Council (EP/N014197/1).en
dc.format.extent6 p.
dc.format.mimetypeapplication/pdfen
dc.format.mimetypeapplication/zipen
dc.language.isoengen
dc.publisherNational Academy of Sciencesen
dc.relation.ispartofProceedings of The National Academy of Sciences, 116 (1), 84-89en
dc.rightsThis open access article is distributed under Creative Commons Attribution-NonCommercial- NoDerivatives License 4.0en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAcoustic levitationen
dc.subjectAcoustic tweezersen
dc.subjectAcoustophoresisen
dc.subjectContactless manipulationen
dc.subjectDisplaysen
dc.titleHolographic acoustic tweezersen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingenieríaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Ingeniaritza Sailaeu
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.1073/pnas.1813047115
dc.relation.publisherversionhttps://doi.org/10.1073/pnas.1813047115
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

This open access article is distributed under Creative Commons Attribution-NonCommercial-
NoDerivatives License 4.0
Except where otherwise noted, this item's license is described as This open access article is distributed under Creative Commons Attribution-NonCommercial- NoDerivatives License 4.0