369 citations · 1.3k across the 38 of their papers we have counts for
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Simple examples of perfectly invisible and trapped modes in waveguides
Lucas Chesnel, Vincent Pagneux
We consider the propagation of waves in a waveguide with Neumann boundary conditions. We work at low wavenumber with only one propagating mode in the leads, all the other modes bei…
Rainbow-trapping absorbers: Broadband, perfect and asymmetric sound absorption by subwavelength panels with ventilation
Noé Jiménez, Vicent Romero-García, Vincent Pagneux +1
Perfect, broadband and asymmetric sound absorption is theoretically, numerically and experimentally reported by using subwavelength thickness panels in a transmission problem. The…
Invisibility and perfect reflectivity in waveguides with finite length branches
Lucas Chesnel, Sergei A. Nazarov, Vincent Pagneux
We consider a time-harmonic wave problem, appearing for example in water-waves and in acoustics, in a setting such that the analysis reduces to the study of a 2D waveguide problem…
PT-symmetric scattering in flow duct acoustics
Yves Aurégan, Vincent Pagneux
We show theoretically and experimentally that the propagation of an acoustic wave in an airflow duct going through a pair of diaphragms, with equivalent amount of mean-flow-induced…