Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Lissek, Herve"'
The non-Hermitian skin effect is an intriguing physical phenomenon, in which all eigen-modes of a non-Hermitian lattice become localized at boundary regions. While such an exotic behavior has been demonstrated in various physical platforms, these rea
Externí odkaz:
http://arxiv.org/abs/2409.20032
Precise wave manipulation has undoubtedly forged the technological landscape we thrive in today. Although our understanding of wave phenomena has come a long way since the earliest observations of desert dunes or ocean waves, the unimpeded developmen
Externí odkaz:
http://arxiv.org/abs/2408.16801
Autor:
Guo, Xinxin, Jezequel, Lucien, Padlewski, Mathieu, Lissek, Hervé, Delplace, Pierre, Fleury, Romain
Nonlinear topology has been much less inquired compared to its linear counterpart. Existing advances have focused on nonlinearities of limited magnitudes and fairly homogeneous types. As such, the realizations have rarely been concerned with the requ
Externí odkaz:
http://arxiv.org/abs/2403.10590
An acoustic dimer composed of two electronically controlled electro-acoustic resonators is presented in view of exploring one-dimensional topological phenomena.
Comment: 9 pages, 9 figures
Comment: 9 pages, 9 figures
Externí odkaz:
http://arxiv.org/abs/2306.00691
Waves, such as light and sound, inherently bounce and mix due to multiple scattering induced by the complex material objects that surround us. This scattering process severely scrambles the information carried by waves, challenging conventional commu
Externí odkaz:
http://arxiv.org/abs/2304.08380
Publikováno v:
Nat Commun 14, 2874 (2023)
Controlling audible sound requires inherently broadband and subwavelength acoustic solutions, which are to date, crucially missing. This includes current noise absorption methods, such as porous materials or acoustic resonators, which are typically i
Externí odkaz:
http://arxiv.org/abs/2209.13673
In the majority of active sound absorbing systems, a conventional electrodynamic loudspeaker is used as a controlled source. However, particular situations may require an actuator that is more resistant to harsh environments, adjustable in shape, and
Externí odkaz:
http://arxiv.org/abs/2108.13866
Sound absorption at low frequencies still remains a challenge in both scientific research and engineering practice. Natural porous materials are ineffective in this frequency range, as well as acoustic resonators which present too narrow bandwidth of
Externí odkaz:
http://arxiv.org/abs/2108.00765
This paper presents an acoustic impedance control architecture for an electroacoustic absorber combining both a feedforward and a feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance for di
Externí odkaz:
http://arxiv.org/abs/2108.02003
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