Abstract
The guiding and tight bending of acoustic waves were investigated in a binary two-dimensional phononic crystal constituted by a square array of circular parallel steel cylinders in water. It was demonstrated that a fully confined waveguide can be constructed by removing a single row in the phononic crystal. Full transmission of the acoustic wave was obtained through a straight waveguide and a waveguide with two sharp bends. The results show that this full transmission can be reduced when the width of the waveguide is doubled due to the creation of a stop band for waveguide modes within the full band gap.
| Original language | English |
|---|---|
| Pages (from-to) | 4400-4402 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 84 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 31 May 2004 |
| Externally published | Yes |