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Experimental demonstration of the negative refraction of a transverse elastic wave in a two-dimensional solid phononic crystal
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10.1063/1.3302456
/content/aip/journal/apl/96/10/10.1063/1.3302456
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/10/10.1063/1.3302456
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

PWE elastic band structures for the 2D PC made of a square array of holes in aluminum. The gray area corresponds to the frequency range in which a unique branch of negative group velocity takes place. The dashed and dotted lines correspond to the longitudinal and transverse velocities in bulk aluminum, respectively.

Image of FIG. 2.
FIG. 2.

(a): Photograph of the PC. (b): Top view of the experimental sample.

Image of FIG. 3.
FIG. 3.

Time-space representation of the signal measured with the laser vibrometer on the surface along the direction. Color scale is in arbitrary units.

Image of FIG. 4.
FIG. 4.

Amplitude in arbitrary units of the transmitted signal through the PC vs the angle of refraction for two incident transverse waves at frequencies and 450 kHz.

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/content/aip/journal/apl/96/10/10.1063/1.3302456
2010-03-10
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental demonstration of the negative refraction of a transverse elastic wave in a two-dimensional solid phononic crystal
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/10/10.1063/1.3302456
10.1063/1.3302456
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