title: Evidence of fano-like interference phenomena in locally resonant materials.
abstract: Sonic crystals consisting of three-dimensional arrays of units which exhibit localized resonances have been discovered recently. Here, it is shown that their two-dimensional counterparts behave in a similar manner. Particularly, it is observed that the transmittance spectra show very asymmetric peaks which are explained as a Fano-like interference phenomenon. A finite difference time domain method is employed to perform a comprehensive study of the resonance line shape as a function of the mass density of the structural units. Also, a simple analytical model is introduced to give an intuitive account of the origin of the interference phenomenon.
authors.affiliation: Departamento de Física Teórica de la Materia Condensada, Facultad de Ciencias (C-5), Universidad Autónoma de Madrid, 28049 Madrid, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Goffaux
authors.forename: J
authors.initials: J
authors.lastname: Sánchez-Dehesa
authors.forename: A Levy
authors.initials: AL
authors.lastname: Yeyati
authors.forename: Ph
authors.initials: P
authors.lastname: Lambin
authors.forename: A
authors.initials: A
authors.lastname: Khelif
authors.forename: J O
authors.initials: JO
authors.lastname: Vasseur
authors.forename: B
authors.initials: B
authors.lastname: Djafari-Rouhani