Topological acoustics
The manipulation of acoustic wave propagation in fluids has numerous applications, including some in everyday life. Acoustic technologies frequently develop in tandem with optics, using shared concepts such as waveguiding and metamedia. It is thus noteworthy that an entirely novel class of electroma...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/107184 http://hdl.handle.net/10220/25401 |
| _version_ | 1811683585147535360 |
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| author | Yang, Zhaoju Gao, Fei Shi, Xihang Lin, Xiao Gao, Zhen Chong, Yidong Zhang, Baile |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Yang, Zhaoju Gao, Fei Shi, Xihang Lin, Xiao Gao, Zhen Chong, Yidong Zhang, Baile |
| author_sort | Yang, Zhaoju |
| collection | NTU |
| description | The manipulation of acoustic wave propagation in fluids has numerous applications, including some in everyday life. Acoustic technologies frequently develop in tandem with optics, using shared concepts such as waveguiding and metamedia. It is thus noteworthy that an entirely novel class of electromagnetic waves, known as “topological edge states,” has recently been demonstrated. These are inspired by the electronic edge states occurring in topological insulators, and possess a striking and technologically promising property: the ability to travel in a single direction along a surface without backscattering, regardless of the existence of defects or disorder. Here, we develop an analogous theory of topological fluid acoustics, and propose a scheme for realizing topological edge states in an acoustic structure containing circulating fluids. The phenomenon of disorder-free one-way sound propagation, which does not occur in ordinary acoustic devices, may have novel applications for acoustic isolators, modulators, and transducers. |
| first_indexed | 2024-10-01T04:15:04Z |
| format | Journal Article |
| id | ntu-10356/107184 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:15:04Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1071842023-02-28T19:34:34Z Topological acoustics Yang, Zhaoju Gao, Fei Shi, Xihang Lin, Xiao Gao, Zhen Chong, Yidong Zhang, Baile School of Physical and Mathematical Sciences DRNTU::Science::Physics The manipulation of acoustic wave propagation in fluids has numerous applications, including some in everyday life. Acoustic technologies frequently develop in tandem with optics, using shared concepts such as waveguiding and metamedia. It is thus noteworthy that an entirely novel class of electromagnetic waves, known as “topological edge states,” has recently been demonstrated. These are inspired by the electronic edge states occurring in topological insulators, and possess a striking and technologically promising property: the ability to travel in a single direction along a surface without backscattering, regardless of the existence of defects or disorder. Here, we develop an analogous theory of topological fluid acoustics, and propose a scheme for realizing topological edge states in an acoustic structure containing circulating fluids. The phenomenon of disorder-free one-way sound propagation, which does not occur in ordinary acoustic devices, may have novel applications for acoustic isolators, modulators, and transducers. Published version 2015-04-14T02:13:50Z 2019-12-06T22:26:11Z 2015-04-14T02:13:50Z 2019-12-06T22:26:11Z 2015 2015 Journal Article Yang, Z., Gao, F., Shi, X., Lin, X., Gao, Z., Chong, Y., et al. (2015). Topological acoustics. Physical review letters, 114(11). https://hdl.handle.net/10356/107184 http://hdl.handle.net/10220/25401 10.1103/PhysRevLett.114.114301 en Physical review letters © 2015 American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevLett.114.114301]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 4 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics Yang, Zhaoju Gao, Fei Shi, Xihang Lin, Xiao Gao, Zhen Chong, Yidong Zhang, Baile Topological acoustics |
| title | Topological acoustics |
| title_full | Topological acoustics |
| title_fullStr | Topological acoustics |
| title_full_unstemmed | Topological acoustics |
| title_short | Topological acoustics |
| title_sort | topological acoustics |
| topic | DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/107184 http://hdl.handle.net/10220/25401 |
| work_keys_str_mv | AT yangzhaoju topologicalacoustics AT gaofei topologicalacoustics AT shixihang topologicalacoustics AT linxiao topologicalacoustics AT gaozhen topologicalacoustics AT chongyidong topologicalacoustics AT zhangbaile topologicalacoustics |