Abstract
The transmission properties of phononic crystal waveguides with grafted stub resonators were measured. The phononic crystal consists of a two-dimensional periodical array of steel rods immersed in water. Waveguides for acoustic waves are created by removing a line defect and stubs are formed by removing rods from the sidewalls of the waveguide. Depending on the stub geometry, definite wavelengths are reflected from the stub creating a one-dimensional bandgap within the waveguide transmission spectrum, the bandwidth of which can be controlled by arranging a proper sequence of stubs. These effects are interpreted as the interaction of propagating waveguide modes with localized stub resonances.
| Original language | English |
|---|---|
| Pages (from-to) | 570-575 |
| Number of pages | 6 |
| Journal | Europhysics Letters |
| Volume | 71 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 15 Aug 2005 |
| Externally published | Yes |