Authors
Jian‐Ping Xia, Ding Jia, Hong‐Xiang Sun, Shou‐Qi Yuan, Yong Ge, Qiao‐Rui Si, Xiao‐Jun Liu
Publication date
2018/11
Journal
Advanced Materials
Volume
30
Issue
46
Pages
1805002
Description
Topological acoustics has recently revolutionized fundamental concepts of acoustic propagation, giving rise to strikingly unique acoustic edge modes immune to backscattering. Despite the rapid progress in this field, simultaneous realization of reconfigurability, intelligentization, and automatic control over acoustic propagation paths is posing a great challenge. This challenge is overcome by proposing the concept of a programmable acoustic topological insulator based on two digital elements “0” or “1,” which consist of honeycomb‐lattice sonic crystals made of cylindrical rods with different diameters. The acoustic propagation paths in the topological insulators can be controlled automatically by programming different coding sequences, which arises from efficient transformation of pseudospin‐dependent edge modes on both interfaces of the digital elements. More importantly, a unique unit is experimentally …
Total citations
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Scholar articles
JP Xia, D Jia, HX Sun, SQ Yuan, Y Ge, QR Si, XJ Liu - Advanced Materials, 2018