Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595816 | Solid State Communications | 2008 | 4 Pages |
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)
Authors
Zhaojian He, Feiyan Cai, Zhengyou Liu,