Cebrecos, A.; Jimenez, N.; Romero García, V.; Picó Vila, R.; Sánchez Morcillo, VJ.; García-Raffi, LM. (2016). Asymmetric propagation using enhanced self-demodulation in a chirped phononic crystal. AIP Advances. 6(12). doi:10.1063/1.4968612
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/78479
Title:
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Asymmetric propagation using enhanced self-demodulation in a chirped phononic crystal
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Author:
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Cebrecos, Alejandro
Jimenez, Noe
Romero García, Vicente
Picó Vila, Rubén
Sánchez Morcillo, Víctor José
García-Raffi, L. M.
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UPV Unit:
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Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada
Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports
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
Universitat Politècnica de València. Instituto Universitario de Matemática Pura y Aplicada - Institut Universitari de Matemàtica Pura i Aplicada
Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia
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Issued date:
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Abstract:
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Asymmetric propagation of acoustic waves is theoretically reported in a chirped phononic crystal made of the combination of two different nonlinear solids. The dispersion of the system is spatially dependent and allows the ...[+]
Asymmetric propagation of acoustic waves is theoretically reported in a chirped phononic crystal made of the combination of two different nonlinear solids. The dispersion of the system is spatially dependent and allows the rainbow trapping inside the structure. Nonlinearity is used to activate the self-demodulation effect, which is enhanced due to the particular dispersion characteristics of the system. The performed numerical study reveals an efficient generation of the demodulated wave, up to 15% in terms of the pressure amplitude, as well as strong attenuation for undesired frequency components above the cut-off frequency. The obtained energy rectification ratio is in the order of 104 for the whole range of amplitudes employed in this work, indicating the robustness of the asymmetry and non-reciprocity of the proposed device for a wide operational range. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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Subjects:
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Asymmetric propagation
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Chirped crystals
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Photoconductivity
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Crystal structure
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Acoustic waves
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Band gap
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Nonlinear acoustic propagation
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Copyrigths:
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Reconocimiento (by)
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Source:
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AIP Advances. (issn:
2158-3226
)
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DOI:
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10.1063/1.4968612
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Publisher:
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AIP Publishing
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Publisher version:
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http://dx.doi.org/10.1063/1.4968612
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Conference name:
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3rd International Conference on Phononic Crystals/Metamaterials, Phonon Transport and Phonon Coupling
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Conference place:
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Paris, France
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Conference date:
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May 31-June 5, 2015
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Project ID:
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Ministerio de Economa y Competitividad (Spain)
European Union FEDER [FIS2015-65998-C2-2-P]
PROPASYM project - Region Pays-dela-Loire
Conselleria de Educacion, Investigacion, Cultura y Deporte de la Generalitat Valenciana [AICO/2016/060]
PAID of the Universitat Politecnica de Valencia
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Thanks:
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This work was supported by Ministerio de Economa y Competitividad (Spain) and European Union FEDER through project FIS2015-65998-C2-2-P, and by PROPASYM project funded by the Region Pays-dela-Loire and by project AICO/2016/060 ...[+]
This work was supported by Ministerio de Economa y Competitividad (Spain) and European Union FEDER through project FIS2015-65998-C2-2-P, and by PROPASYM project funded by the Region Pays-dela-Loire and by project AICO/2016/060 by Conselleria de Educacion, Investigacion, Cultura y Deporte de la Generalitat Valenciana. NJ acknowledges financial support from PAID-2011 of the Universitat Politcnica de Valncia.
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Type:
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Artículo
Comunicación en congreso
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