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Enhanced of sound by soft reflections in exponentially chirped crystals

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Enhanced of sound by soft reflections in exponentially chirped crystals

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dc.contributor.author Cebrecos Ruiz, Alejandro es_ES
dc.contributor.author Picó Vila, Rubén es_ES
dc.contributor.author Sánchez Morcillo, Víctor José es_ES
dc.contributor.author Staliünas, Kestutis es_ES
dc.contributor.author Romero García, Vicente es_ES
dc.contributor.author García-Raffi, L. M. es_ES
dc.date.accessioned 2015-05-29T17:56:32Z
dc.date.available 2015-05-29T17:56:32Z
dc.date.issued 2014-12
dc.identifier.issn 2158-3226
dc.identifier.uri http://hdl.handle.net/10251/51000
dc.description.abstract The enhancement of sound inside a two dimensional exponentially chirped crystal during the soft reflections of waves is experimentally and theoretically explored in this work. The control of this enhancement is achieved by a gradual variation of the dispersion in the system by means of a chirp of the lattice constant. The sound enhancement is produced at some planes of the crystal in which the wave is softly reflected due to a progressive slowing down of the sound wave. We find that the character of the sound enhancement depends on the function of the variation of dispersion, i.e., on the function of the chirp. A simple coupled mode theory is proposed to find the analytical solutions of the sound wave enhancement in the exponentially chirped crystal. Harmonic and time domain numerical simulations are performed to interpret the concept of the soft reflections, and to check the analytically calculated field distributions both in good agreement with experiments. Specially we obtain stronger sound enhancement than in linearly chirped crystals. This sound enhancement could motivate applications in energy harvesting, e.g., to increase the efficiency of detectors and absorbers. (C) 2014 Author(s). es_ES
dc.description.sponsorship The work was supported by Spanish Ministry of Economy and European Union FEDER through project FIS2011-29731-C02-02. LMGR Acknowledges Supported by MINECO and FEDER, under Grant MTM2012-36740-c02-02. ACR is grateful for the support of Programa de Ayudas e Iniciativas de Investigacion (PAID) of the UPV. en_EN
dc.language Inglés es_ES
dc.publisher American Institute of Physics (AIP): Open Access Journals es_ES
dc.relation.ispartof AIP Advances es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Acoustic waves es_ES
dc.subject Band es_ES
dc.subject Enhancement es_ES
dc.subject Locally periodic es_ES
dc.subject Periodic structures es_ES
dc.subject Soft reflection es_ES
dc.subject Sound enhancements es_ES
dc.subject Wave propagation es_ES
dc.subject Sonic crystals es_ES
dc.subject Phononic crystals es_ES
dc.subject Chirped crystals es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Enhanced of sound by soft reflections in exponentially chirped crystals es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1063/1.4902508
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//FIS2011-29734-C02-02/ES/CONTROL DE LA DIFRACCION DEL SONIDO EN MEDIOS MODULADOS: FOCALIZACION, FILTRADO ESPACIAL Y OTROS EFECTOS DE CONFORMACION DE HACES TRAS LA TRANSMISION Y REFLEXION/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//MTM2012-36740-C02-02/ES/OPERADORES MULTILINEALES, ESPACIOS DE FUNCIONES INTEGRABLES Y APLICACIONES/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Matemática Pura y Aplicada - Institut Universitari de Matemàtica Pura i Aplicada es_ES
dc.description.bibliographicCitation Cebrecos Ruiz, A.; Picó Vila, R.; Sánchez Morcillo, VJ.; Staliünas, K.; Romero García, V.; García-Raffi, LM. (2014). Enhanced of sound by soft reflections in exponentially chirped crystals. AIP Advances. 4(12):124402-124412. https://doi.org/10.1063/1.4902508 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1063/1.4902508 es_ES
dc.description.upvformatpinicio 124402 es_ES
dc.description.upvformatpfin 124412 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 4 es_ES
dc.description.issue 12 es_ES
dc.relation.senia 276878
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
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