Non-reciprocal acoustic transmission via space-time modulated membranes
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/1.5132699
Abstract: Non-reciprocity has recently attracted considerable attention as it enables new possibilities in wave manipulation and control. Here, we propose and analyze theoretically and numerically a waveguide system consisting of two membranes whose surface tensions are… read more here.
Keywords: transmission via; non reciprocal; time modulated; time ... See more keywords
Manipulation of extraordinary acoustic transmission using cascaded both-sides-open disk resonator array
Sign Up to like & getrecommendations! Published in 2020 at "AIP Advances"
DOI: 10.1063/5.0020549
Abstract: Extraordinary acoustic transmission (EAT) through cascaded both-sides-open disk resonators (BSODRs) in a square lattice array (SLA) is investigated. A single BSODR consists of one disk cavity that is sandwiched by two tubes. These structures are… read more here.
Keywords: cascaded sides; disk; transmission; acoustic transmission ... See more keywords
Acoustic Transmission Loss in Shallow-Water Waveguides with an Sloping Bottom
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DOI: 10.1134/s1063771019050129
Abstract: The paper analytically demonstrates that for a shallow-water waveguide, there can be found an “optimal” bottom profile for which the energy losses with range will be the lowest, provided the initial and final depths are… read more here.
Keywords: transmission loss; water; loss shallow; acoustic transmission ... See more keywords
Dark Solitons in Acoustic Transmission Line Metamaterials
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DOI: 10.3390/app8071186
Abstract: We study dark solitons, namely density dips with a phase jump across the density minimum, in a one-dimensional, weakly lossy nonlinear acoustic metamaterial, composed of a waveguide featuring a periodic array of side holes. Relying… read more here.
Keywords: acoustic transmission; transmission line; dark solitons; solitons acoustic ... See more keywords