Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7152524 | Applied Acoustics | 2016 | 5 Pages |
Abstract
A rectangular cavity inside a two-dimensional sonic crystal was theoretically and experimentally characterized by examining its response to a cylindrical source emitting narrow-band filtered noise bursts with central frequencies ranging from 2 to 12Â kHz. A broadband intensity resonance was observed for frequencies within the full band-gap region of the sonic crystal (5.5-6.5Â kHz). Unlike ordinary resonances, this broadband resonance depends on the reflection properties of the sonic crystal forming the surrounding walls rather than on the geometry of the cavity.
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Authors
Alejo Alberti, Pablo M. Gomez, Ignacio Spiousas, Manuel C. Eguia,