Novel acoustic flat focusing based on the asymmetric response in parity-time-symmetric phononic crystals
Author:
Funder
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Subject
Multidisciplinary
Link
http://www.nature.com/articles/s41598-019-46467-3.pdf
Reference41 articles.
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2. Otsuka, P. H. et al. Broadband evolution of phononic-crystal-waveguide eigenstates in real- and k-spaces. Sci. Rep. 3, 3351 (2013).
3. Wu, T. T., Chen, Y. T., Sun, J. H., Lin, S. S. & Huang, T. J. Focusing of the lowest antisymmetric Lamb wave in a gradient-index phononic crystal plate. Appl. Phys. Lett. 98, 171911 (2011).
4. Yang, S. X. et al. Focusing of sound in a 3D phononic crystal. Phys. Rev. Lett. 93, 024301 (2004).
5. Deng, K. et al. Graded negative index lens with designable focal length by phononic crystal. J. Phys. D: Appl. Phys. 42, 185505 (2009).
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