## Achieving directional propagation of elastic waves via topology optimization.

- Jingjie He, Zhan Kang
- Ultrasonics
- 2018

@article{Dong2017InverseDO, title={Inverse design of high-Q wave filters in two-dimensional phononic crystals by topology optimization.}, author={Hao-Wen Dong and Yang Wang and Chuanzeng Zhang}, journal={Ultrasonics}, year={2017}, volume={76}, pages={109-124} }

- Published 2017 in Ultrasonics
DOI:10.1016/j.ultras.2016.12.018

Topology optimization of a waveguide-cavity structure in phononic crystals for designing narrow band filters under the given operating frequencies is presented in this paper. We show that it is possible to obtain an ultra-high-Q filter by only optimizing the cavity topology without introducing any other coupling medium. The optimized cavity with highly symmetric resonance can be utilized as the multi-channel filter, raising filter and T-splitter. In addition, most optimized high-Q filters have… CONTINUE READING

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