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Communication Dans Un Congrès Année : 2015

Study of an hybridization gap in a one dimensional piezoelectric phononic crystal

Résumé

A one dimensional Phononic Crystals (PC) composed of a periodic stack including piezoelectric plates is studied. When the size of the pattern is a multiple of the wavelength, Bragg gaps appear based on interference mechanisms. In addition to this property, it is shown in this paper that the use of active piezoelectric plates allows opening hybridization gaps. These gaps are due to a coupling of an electrical resonance with the propagation of the acoustic waves. The electrical resonance is obtained by connecting inductances on the piezoelectric plates. Both experimental and analytical studies are conducted in this paper in order to study this phenomenon.
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Dates et versions

hal-03300132 , version 1 (15-07-2022)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Sid Ali Mansoura, Bruno Morvan, Pierre Maréchal, Anne-Christine Hladky, Bertrand Dubus. Study of an hybridization gap in a one dimensional piezoelectric phononic crystal. Proceedings of the ICU International Congress on Ultrasonics 2015, May 2015, Metz, France. ⟨10.1016/j.phpro.2015.08.154⟩. ⟨hal-03300132⟩
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