Hamham, EM.; Jimenez, N.; Picó Vila, R.; Sánchez Morcillo, VJ.; García-Raffi, LM.; Staliünas, K. (2015). Nonlinear self-collimated sound beams in sonic crystals. Physical Review B. 92(5). doi:10.1103/PhysRevB.92.054302
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/63779
Title:
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Nonlinear self-collimated sound beams in sonic crystals
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Author:
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Hamham, El Mokhtar
Jimenez, Noe
Picó Vila, Rubén
Sánchez Morcillo, Víctor José
García-Raffi, L. M.
Staliünas, Kestutis
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UPV Unit:
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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. Departamento de Física Aplicada - Departament de Física Aplicada
Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada
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Issued date:
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Abstract:
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We report the propagation of high-intensity sound beams in a sonic crystal, under self-collimation or reduced-divergence conditions. The medium is a fluid with elastic quadratic nonlinearity, where the dominating nonlinear ...[+]
We report the propagation of high-intensity sound beams in a sonic crystal, under self-collimation or reduced-divergence conditions. The medium is a fluid with elastic quadratic nonlinearity, where the dominating nonlinear effect is harmonic generation. The conditions for the efficient generation of narrow, nondiverging beam of second harmonic are discussed. Numerical simulations are in agreement with the analytical predictions made, based on the linear dispersion characteristics in modulated media and the nonlinear interaction in a quadratic medium under phase matching conditions.
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Subjects:
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Nonlinear
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Second harmonic generation
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Sonic crystals
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Physical Review B. (issn:
1098-0121
)
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DOI:
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10.1103/PhysRevB.92.054302
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Publisher:
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American Physical Society
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Publisher version:
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http://dx.doi.org/10.1103/PhysRevB.92.054302
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Project ID:
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info:eu-repo/grantAgreement/MICINN//FIS2011-29734-C02-01/ES/CONTROL DE LA DIFRACCION DE LA LUZ EN MEDIOS MODULADOS/ /
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/
info:eu-repo/grantAgreement/MINECO//MTM2012-36740-C02-02/ES/OPERADORES MULTILINEALES, ESPACIOS DE FUNCIONES/
INTEGRABLES Y APLICACIONES./
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Thanks:
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The work was supported by Ministerio de Economia y Competitividad of the Spanish government, and the European Union FEDER through Projects No. FIS2011-29734-C02-01 and -02, and No. MTM2012-36740-C02-02. We acknowledge A. ...[+]
The work was supported by Ministerio de Economia y Competitividad of the Spanish government, and the European Union FEDER through Projects No. FIS2011-29734-C02-01 and -02, and No. MTM2012-36740-C02-02. We acknowledge A. Cebrecos and V. Romero-Garcia for their help in the band structure calculations. E.M.H. acknowledges EU-EMMAG program for his postdoctoral fellowship.
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Type:
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Artículo
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