108 citations · 242 across the 7 of their papers we have counts for
7 papers
Abnormal topological refraction into free medium at sub-wavelength scale in valley phononic crystal plates
Linyun Yang, Kaiping Yu, Bernard Bonello +2
In this work we propose a topological valley phononic crystal plate and we extensively investigate the refraction of valley modes into the surrounding homogeneous medium. This phon…
Polarization-dependent and Valley-protected Lamb Waves in Asymmetric Pillared Phononic Crystals
Wei Wang, Bernard Bonello, Bahram Djafari-Rouhani +1
We present the realization of the topological valley-protected zero-order antisymmetric (A0) or symmetric (S0) and zero-order shear-horizontal (SH0) Lamb waves at different domain…
Valley and pseudospin-valley topologically protected edge states in symmetric pillared phononic crystals
Wei Wang, Bernard Bonello, Bahram Djafari-Rouhani +1
We present a symmetric double-sided pillared phononic crystals (PPnCs) that can emulate both quantum spin Hall effect (QSHE) and quantum valley Hall effect (QVHE) by solely imposin…
Exploring rotational resonance in elastic metamaterial plates to realize doubly negative property
Wei Wang, Bernard Bonello, Bahram Djafari-Rouhani +2
We report the realization of simultaneously negative effective mass density and shear modulus in a single-phase asymmetric double-sided pillared metamaterial. The negative effectiv…
Wave propagation in one-dimensional nonlinear acoustic metamaterials
Xin Fang, Jihong Wen, Bernard Bonello +2
The propagation of waves in the nonlinear acoustic metamaterials (NAMs) is fundamentally different from that in the conventional linear ones. In this article we consider two one-di…
Propagation of acoustic surface waves on a phononic surface investigated by transient reflecting grating spectroscopy
I. Malfanti, A. Taschin, P. Bartolini +2
We present a study of surface acoustic waves (SAW) propagation on a 1D phononic surface (PS) by mean of an heterodyne-detected transient reflecting grating experiment. We excited a…