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Negative refraction and energy funneling by hyperbolic materials : an experimental demonstration in acoustics

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Negative refraction and energy funneling by hyperbolic materials : an experimental demonstration in acoustics

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dc.contributor.author García Chocano, Víctor Manuel es_ES
dc.contributor.author Christensen, Johan es_ES
dc.contributor.author Sánchez-Dehesa Moreno-Cid, José es_ES
dc.date.accessioned 2015-12-15T08:41:48Z
dc.date.available 2015-12-15T08:41:48Z
dc.date.issued 2014-04-10
dc.identifier.issn 0031-9007
dc.identifier.uri http://hdl.handle.net/10251/58810
dc.description.abstract This Letter reports the design, fabrication, and experimental characterization of hyperbolic materials showing negative refraction and energy funneling of airborne sound. Negative refraction is demonstrated using a stack of five holey Plexiglas plates where their thicknesses, layer separation, hole diameters, and lattice periodicity have been determined to show hyperbolic dispersion around 40 kHz. The resulting hyperbolic material shows a flat band profile in the equifrequency contour allowing the gathering of acoustic energy in a broad range of incident angles and its funneling through the material. Our demonstrations foresee interesting developments based on both phenomena. Acoustic imaging with subwavelength resolution and spot-size converters that harvest and squeeze sound waves irradiating from many directions into a collimated beam are just two possible applications among many. es_ES
dc.description.sponsorship This work was partially supported by the Office of Naval Research (USA) under Grant No. N000140910554, and by the Ministerio de Economia y Competitividad (Spain) under Contract No. TEC2010-19751. J. C. gratefully acknowledges financial support from the Danish Council for Independent Research and a Sapere Aude Grant (12-134776). en_EN
dc.language Inglés es_ES
dc.publisher American Physical Society es_ES
dc.relation.ispartof Physical Review Letters es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Negative refraction es_ES
dc.subject Hyperbolic materials es_ES
dc.subject Energy funneling es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Negative refraction and energy funneling by hyperbolic materials : an experimental demonstration in acoustics es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1103/PhysRevLett.112.144301
dc.relation.projectID info:eu-repo/grantAgreement/ONR//N00014-09-1-0554/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/DFF//12-134776/DK/Sapere Aude: DFF-Starting Grant es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//TEC2010-19751/ES/NUEVOS DISPOSITIVOS BASADOS EN METAMATERIALES ELECTROMAGNETICOS Y ACUSTICOS/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation García Chocano, VM.; Christensen, J.; Sánchez-Dehesa Moreno-Cid, J. (2014). Negative refraction and energy funneling by hyperbolic materials : an experimental demonstration in acoustics. Physical Review Letters. 112(14). https://doi.org/10.1103/PhysRevLett.112.144301 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1103/PhysRevLett.112.144301 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 112 es_ES
dc.description.issue 14 es_ES
dc.relation.senia 267288 es_ES
dc.identifier.eissn 1079-7114
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Office of Naval Research es_ES
dc.contributor.funder Independent Research Fund Denmark es_ES
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