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International audienceA bubble meta-screen, i.e. a single layer of gas inclusions in a soft solid, can be modeled as an acoustic open resonator, whose behavior is well captured by a simple analytical expression. We show that by tuning the parameters of the meta-screen, acoustic super-absorption can be achieved over a broad frequency range, which is confirmed by finite element simulations and experiments. Bubble meta-screens can thus be used as ultra thin coatings for turning acoustic reflectors into perfect absorbers

Superabsorption of acoustic waves with bubble metascreens