| dc.contributor.author | Beadle, J | |
| dc.contributor.author | Starkey, T | |
| dc.contributor.author | Dockrey, J | |
| dc.contributor.author | Sambles, JR | |
| dc.contributor.author | Hibbins, A | |
| dc.date.accessioned | 2018-07-06T10:18:17Z | |
| dc.date.issued | 2018-07-16 | |
| dc.description.abstract | We study the radiative and bound acoustic modes supported by a rigid grating formed of three same-depth, narrow grooves per unit cell. One of the grooves is twice the width of the other two, forming a ‘compound’ grating. The structure supports so-called ‘phase’ resonances where the phase difference of the pressure field between the grooves on resonance varies by multiples of π. We explore the dispersion of these modes experimentally by monitoring the specularly reflected signal as a function of the angle of incidence. In addition, by near-field excitation, the dispersion of the non-radiative surface modes has been characterised. Our results are compared with the predictions of a finite element method model. | en_GB |
| dc.description.sponsorship | The authors wish to acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom, via the EPSRC Centre for Doctoral Training in Metamaterials (Grant No. EP/L015331/1), QinetiQ and DSTL. | en_GB |
| dc.identifier.citation | Vol. 8. Published online 16 July 2018. | en_GB |
| dc.identifier.doi | 10.1038/s41598-018-29149-4 | |
| dc.identifier.uri | http://hdl.handle.net/10871/33385 | |
| dc.language.iso | en | en_GB |
| dc.publisher | Nature Publishing Group | en_GB |
| dc.relation.source | All data created during this research are openly available from the University of Exeter's institutional
repository. | en_GB |
| dc.relation.url | https://doi.org/10.24378/exe.606 | |
| dc.rights | © The Author(s) 2018. 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/. | |
| dc.title | The acoustic phase resonances and surface waves supported by a compound rigid grating (article) | en_GB |
| dc.type | Article | en_GB |
| dc.identifier.issn | 2045-2322 | |
| dc.description | This is the author accepted manuscript. The final version is available from Nature Publishing Group via the DOI in this record. | en_GB |
| dc.description | The dataset associated with this article is located in ORE at: https://doi.org/10.24378/exe.606 | |
| dc.identifier.journal | Scientific Reports | en_GB |
| refterms.dateFOA | 2018-11-30T10:18:21Z | |
