期刊
ADVANCED MATERIALS
卷 30, 期 18, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201800257
关键词
acoustic vortex metasurfaces; multiplexing and demultiplexing; orbital angular momentum; real-time information transfer
类别
资金
- National Key RAMP
- D Program of China [2017YFA0303700]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- National Natural Science Foundation of China [81127901, 11634006]
Metasurfaces are used to enable acoustic orbital angular momentum (a-OAM)-based multiplexing in real-time, postprocess-free, and sensor-scanning-free fashions to improve the bandwidth of acoustic communication, with intrinsic compatibility and expandability to cooperate with other multiplexing schemes. The metasurface-based communication relying on encoding information onto twisted beams is numerically and experimentally demonstrated by realizing real-time picture transfer, which differs from existing static data transfer by encoding data onto OAM states. With the advantages of real-time transmission, passive and instantaneous data decoding, vanishingly low loss, compact size, and high transmitting accuracy, the study of a-OAM-based information transfer with metasurfaces offers new route to boost the capacity of acoustic communication and great potential to profoundly advance relevant fields.
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