Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
Volume 29, Issue 28, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217979215501933
Keywords
Sonic crystal; omnidirectional reflection; acoustic waveguide; flexibly guiding
Funding
- National Natural Science Foundation of China [11104113, 11464012, 11264011, 11304119]
- Natural Science Foundation of Education Department of Hunan Province, China [13B091, 13A077]
- Aid program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
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An acoustic waveguide based on the omnidirectional reflection of one-dimensional (1D) sonic crystal (sc) is designed to realize the flexible guiding of sound waves. Numerical simulations indicate that high-efficiency transmission can be achieved at arbitrary bending angle and over a wide frequency range. Moreover, flexible waveguide branches can also be easily constructed by introducing more crystal structures into the waveguides. Owing to its designing flexibility, this waveguide would be very useful in various integrated applications based on SCs.
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