Enhanced transmission band in periodic media with loss modulation

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Física
dc.contributor	Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.contributor.author	Cebrecos, A.
dc.contributor.author	Pico Vila, Rubén
dc.contributor.author	Romero García, Vicenç
dc.contributor.author	Yasser, A.M.
dc.contributor.author	Maigyte, Lina
dc.contributor.author	Herrero Simon, Ramon
dc.contributor.author	Botey Cumella, Muriel
dc.contributor.author	Sánchez Morcillo, Victor José
dc.contributor.author	Staliunas, Kestutis
dc.date	2014-11-17
dc.identifier.citation	Cebrecos, A., Pico, R., Romero-García, V., Yasser, A., Maigyte, L., Herrero, R., Botey, M., Sánchez, V., Staliunas, K. Enhanced transmission band in periodic media with loss modulation. "Applied physics letters", 17 Novembre 2014, vol. 105, núm. 204104.
dc.identifier.citation	0003-6951
dc.identifier.citation	10.1063/1.4902387
dc.identifier.uri	http://hdl.handle.net/2117/81684
dc.language.iso	eng
dc.relation	http://scitation.aip.org/content/aip/journal/apl/105/20/10.1063/1.4902387
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Física::Acústica
dc.subject	Sound-waves
dc.subject	Wave mechanics
dc.subject	Porous materials
dc.subject	Acoustic waves
dc.subject	Acoustic absorption
dc.subject	Materials properties
dc.subject	Mechanical waves
dc.subject	Porous materials
dc.subject	Ones sonores
dc.subject	Mecànica ondulatòria
dc.subject	Materials porosos
dc.title	Enhanced transmission band in periodic media with loss modulation
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Copyright 2014 AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
dc.description.abstract	We study the propagation of waves in a periodic array of absorbing layers. We report an anomalous increase of wave transmission through the structure related to a decrease of the absorption around the Bragg frequencies. The effect is first discussed in terms of a generic coupled wave model extended to include losses, and its predictions can be applied to different types of waves propagating in media with periodic modulation of the losses at the wavelength scale. The particular case of sound waves in an array of porous layers embedded in air is considered. An experiment designed to test the predictions demonstrates the existence of the enhanced transmission band.
dc.description.abstract	Peer Reviewed

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