On the number and location of zero-group-velocity modes
The frequency-wavenumber spectra of laminated media often exhibit anomalous modes with descending branches whose group velocity is negative, and these terminate at a minimum point at which the group velocity transitions from negative to positive. These minima are associated with resonant conditions...
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| Format: | Article |
| Language: | en_US |
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Acoustical Society of America (ASA)
2013
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| Online Access: | http://hdl.handle.net/1721.1/78901 |