Compact Waveguide and Guided Beam Pattern ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Compact Waveguide and Guided Beam Pattern Based on the Whispering-Gallery Mode of a Hollow Pillar in a Phononic Crystal Plate
Author(s) :
Yuan, Weitao [Auteur]
Tongji University
Zhao, Jinfeng [Auteur]
Tongji University
Bonello, Bernard [Auteur]
Acoustique pour les nanosciences [INSP-E3]
Djafari-Rouhani, Bahram [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Physique - IEMN [PHYSIQUE - IEMN]
Zhang, Xiaoqing [Auteur]
Tongji University
Pan, Yongdong [Auteur]
Tongji University
Zhong, Zheng [Auteur]
Tongji University
Tongji University
Zhao, Jinfeng [Auteur]
Tongji University
Bonello, Bernard [Auteur]
Acoustique pour les nanosciences [INSP-E3]
Djafari-Rouhani, Bahram [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Physique - IEMN [PHYSIQUE - IEMN]
Zhang, Xiaoqing [Auteur]
Tongji University
Pan, Yongdong [Auteur]
Tongji University
Zhong, Zheng [Auteur]
Tongji University
Journal title :
Physical Review Applied
Pages :
034010
Publisher :
American Physical Society
Publication date :
2018
ISSN :
2331-7019
English keyword(s) :
Acoustic metamaterials
Acoustic wave phenomena
Mechanical & acoustical properties
Waveguides
Whispering gallery mode resonators
Acoustic wave phenomena
Mechanical & acoustical properties
Waveguides
Whispering gallery mode resonators
HAL domain(s) :
Physique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
English abstract : [en]
We report on the experimental evidence of the guiding of the lowest order antisymmetric Lamb mode (A0) through a compact waveguide consisting of aligned hollow pillars in between a square-latticed array of solid pillars ...
Show more >We report on the experimental evidence of the guiding of the lowest order antisymmetric Lamb mode (A0) through a compact waveguide consisting of aligned hollow pillars in between a square-latticed array of solid pillars on a thin slab. We analyze both numerically and experimentally the guiding achievements and we highlight the role played by the whispering gallery mode of the hollow pillars. In particular, we highlight the evolution of the displacement field pattern behind the waveguide that we relate to the emission of a quadrupolar wave interacting with the surrounding solid pillars. We also show the asymmetric transmission of a compact waveguide based on the same mechanism.Show less >
Show more >We report on the experimental evidence of the guiding of the lowest order antisymmetric Lamb mode (A0) through a compact waveguide consisting of aligned hollow pillars in between a square-latticed array of solid pillars on a thin slab. We analyze both numerically and experimentally the guiding achievements and we highlight the role played by the whispering gallery mode of the hollow pillars. In particular, we highlight the evolution of the displacement field pattern behind the waveguide that we relate to the emission of a quadrupolar wave interacting with the surrounding solid pillars. We also show the asymmetric transmission of a compact waveguide based on the same mechanism.Show less >
Language :
Anglais
Popular science :
Non
Source :
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