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SCT_for_Acoustic_Spinning_Objects_vf.pdf
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Accepted manuscript
Type
ArticleKAUST Department
Applied Mathematics and Computational Science ProgramComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Waves in Complex Media Research Group
Date
2020-05-20Preprint Posting Date
2020-04-03Submitted Date
2020-03-20Permanent link to this record
http://hdl.handle.net/10754/662521
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Show full item recordAbstract
The scattering cancellation technique (SCT) has proved to be an effective way to render static objects invisible to electromagnetic and acoustic waves. However, rotating cylindrical or spherical objects possess additional peculiar scattering features that cannot be canceled by regular SCT-based cloaks. Here, a generalized SCT theory to cloak spinning objects, and hide them from static observers, based on rotating shells with different angular velocity is discussed. This concept is analytically and numerically demonstrated in the case of cylinders, showing that the generalized SCT operates efficiently in making rotating objects appear static to an external observer. Our proposal extends the realm of SCT and brings it one step closer to its practical realization that involves moving objects.Citation
Farhat, M., Guenneau, S., Alù, A., & Wu, Y. (2020). Scattering cancellation technique for acoustic spinning objects. Physical Review B, 101(17). doi:10.1103/physrevb.101.174111Sponsors
The research reported in this manuscript was supported by King Abdullah University of Science and Technology Baseline Research Fund BAS/1/1626-01-01. A.A. acknowledges support from the Air Force Office of Scientific Research.Publisher
American Physical Society (APS)Journal
Physical Review BarXiv
2004.01482Additional Links
https://link.aps.org/doi/10.1103/PhysRevB.101.174111ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevB.101.174111