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dc.contributor.authorMei, Jun
dc.contributor.authorWu, Ying
dc.date.accessioned2019-08-21T08:15:25Z
dc.date.available2019-08-21T08:15:25Z
dc.date.issued2019-08-12
dc.identifier.citationMei, J., & Wu, Y. (2019). Subwavelength acoustic monopole source emission enhancement through dual gratings. Scientific Reports, 9(1). doi:10.1038/s41598-019-48215-z
dc.identifier.doi10.1038/s41598-019-48215-z
dc.identifier.urihttp://hdl.handle.net/10754/656561
dc.description.abstractAcoustic source emission rate is generally low at low frequencies. In this work, we propose a simple design of ‘LEGO’-type acoustic metamaterial that can significantly enhance the low frequency emission rate of an acoustic monopole source. Such enhancement is resulted from the coupling between resonances of a cavity and a dual grating comprised of two concentric layers of periodically distributed narrow slits. We develop an effective medium model to characterize the enhancement. Because of its simple structure, the metamaterial is easy to fabricate and thus facilitates the applications in various domains such as oil exploration.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (Grant Nos 11274120 and 11574087), King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2016-CRG5-2950 and Baseline Research Fund BAS/1/1626-01-01.
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/s41598-019-48215-z
dc.rightsArchived with thanks to Scientific Reports
dc.titleSubwavelength acoustic monopole source emission enhancement through dual gratings
dc.typeArticle
dc.contributor.departmentApplied Mathematics and Computational Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalScientific Reports
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics, South China University of Technology, Guangzhou, 510640, China
kaust.personWu, Ying
kaust.grant.numberBAS/1/1626-01-01
kaust.grant.numberOSR-2016-CRG5-2950
refterms.dateFOA2019-08-21T08:16:02Z
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2019-08-12
dc.date.published-print2019-12


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