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Focusing of the lowest antisymmetric Lamb wave in a gradient-index phononic crystal plate
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10.1063/1.3583660
/content/aip/journal/apl/98/17/10.1063/1.3583660
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/17/10.1063/1.3583660
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Band structure of the air/silicon PC plate with filling . The inset is the EFCs at 3 MHz (dotted black line), and the wave numbers and are normalized by a factor of .

Image of FIG. 2.
FIG. 2.

(a) Band structure of the mode of the air/silicon PC plate with different ff. (b) The EFCs of the mode shown in (a) at 3 MHz.

Image of FIG. 3.
FIG. 3.

(a) A schema of the GRIN PC plate. The arrow shows the propagation direction. (b) Simulation of the wave propagation along the -direction in the GRIN PC plate at 3 MHz. The solid contour shows the region of amplitude grater than 0.95 times of the maximum value. (c) Simulation of the wave propagation along the -direction in a GRIN PC plate adjoined with a PC plate waveguide at 3 MHz. (d) Simulation of the wave propagation along the -direction in the same PC structure as that in (c) at 2.7 MHz.

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/content/aip/journal/apl/98/17/10.1063/1.3583660
2011-04-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Focusing of the lowest antisymmetric Lamb wave in a gradient-index phononic crystal plate
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/17/10.1063/1.3583660
10.1063/1.3583660
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