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. 2017 Aug 15;7:8151. doi: 10.1038/s41598-017-07232-6

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Acoustic invisibility performances. Simulated acoustic pressure field distributions (a) without and (b) with the acoustic metafiber bundle illuminated by an incident cylindrical wave at 8.0 kHz. The cylindrical acoustic source is located at (−3 cm, 0) in Cartesian coordinates. (c) Pressure amplitude distributions along the lines I and II in (a and b). Simulated acoustic pressure field distributions (d) without and (e) with the acoustic metafiber bundle illuminated by the normally plane wave at 8.0 kHz, and the acoustic metafiber bundle in e is rotated 30°. (f) Pressure amplitude distributions along the lines III and IV in (d and e).