@article{177c0efa0f8a4e88b2e83ad02951668b,
title = "Shaping reverberating sound fields with an actively tunable metasurface",
abstract = "A reverberating environment is a common complex medium for airborne sound, with familiar examples such as music halls and lecture theaters. The complexity of reverberating sound fields has hindered their meaningful control. Here, by combining acoustic metasurface and adaptive wavefield shaping, we demonstrate the versatile control of reverberating sound fields in a room. This is achieved through the design and the realization of a binary phase-modulating spatial sound modulator that is based on an actively reconfigurable acoustic metasurface. We demonstrate useful functionalities including the creation of quiet zones and hotspots in a typical reverberating environment.",
keywords = "Acoustics, Metasurface, Reverberation, Wavefront shaping",
author = "Guancong MA and Xiying Fan and Ping Sheng and Mathias Fink",
note = "Funding Information: ACKNOWLEDGMENTS. We thank Yue Xiao and Shuyu Chen for sample fabrication, and Walter Ching Lee for electronics and circuit design. G.M. thanks Philipp del Hougne, Matthieu Dupr{\'e}, and Geoffroy Lerosey for helpful discussions. G.M., X.F., and P.S. acknowledge the support of Innovation and Technology Commission of Hong Kong Government through Project ITF/203/15. G.M. and P.S. also acknowledge the support of the Hong Kong Research Grants Council (Grant AoE/P-02/12). Funding Information: We thank Yue Xiao and Shuyu Chen for sample fabrication, and Walter Ching Lee for electronics and circuit design. G.M. thanks Philipp del Hougne, Matthieu Dupr{\'e}, and Geoffroy Lerosey for helpful discussions. G.M., X.F., and P.S. acknowledge the support of Innovation and Technology Commission of Hong Kong Government through Project ITF/203/15. G.M. and P.S. also acknowledge the support of the Hong Kong Research Grants Council (Grant AoE/P-02/12).",
year = "2018",
month = jun,
day = "26",
doi = "10.1073/pnas.1801175115",
language = "English",
volume = "115",
pages = "6638--6643",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "National Academy of Sciences",
number = "26",
}