26 citations · 29 across the 4 of their papers we have counts for
4 papers
Direct experimental observation of total absorption and loss compensation using sound waves with complex frequencies
Anis Maddi, Gaelle Poignand, Vassos Achilleos +2
In this study, we experimentally investigate the application of a transient signal with complex frequencies to the absorption and transmission of sound waves. Indeed, the emission…
A nonreciprocal and tunable active acoustic scatterer
Anis Maddi, Gaelle Poignand, Vassos Achilleos +2
A passive loudspeaker mounted in a duct acts as a reciprocal scatterer for plane waves impinging on either of its sides. However, the reciprocity can be broken by means of an asymm…
Time-resolved measurement of acoustic density fluctuations using a phase-shifting Mach-Zehnder interferometer
Eita Shoji, Anis Maddi, Guillaume Penelet +1
Phase-shifting interferometry is one of the optical measurement techniques that improves accuracy and resolution by incorporating a controlled phase shift into conventional optical…
Exact analogue of the Hatano-Nelson model in 1D continuous nonreciprocal systems
Anis Maddi, Yves Auregan, Guillaume Penelet +2
We propose a general framework that enables the exact mapping of continuous nonreciprocal 1D periodic systems to the Hatano-Nelson (HN) model. Our approach, based on the two-port t…