Article ID Journal Published Year Pages File Type
1595816 Solid State Communications 2008 4 Pages PDF
Abstract

By virtue of the flat-shaped dispersion surface, acoustic wave beams inside a phononic crystal can propagate in a self-collimated or non-diffractive way. In this paper, we show that the non-diffractively propagating acoustic beams can be further tuned, by design, to propagate in a curved path in a graded phononic crystal, which thus may be used as an alternative device to the waveguide in applications. An acoustic wave beam propagating inside a two-dimensional graded phononic crystal and bending by an angle of π6 is demonstrated by FDTD simulation.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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