292 citations · 1.6k across the 40 of their papers we have counts for
6 papers · 1 filter
Total-internal-reflection elastic metasurfaces: design and application to structural vibration isolation
Hongfei Zhu, Timothy F. Walsh, Fabio Semperlotti
This letter presents the concept of Total Internal Reflection metasurface (TIR-MS) which supports the realization of structure-embedded subwavelength acoustic shields for elastic w…
Analysis of dispersion and propagation properties in a periodic rod using a space-fractional wave equation
John Hollkamp, Mihir Sen, Fabio Semperlotti
This study explores the use of fractional calculus as a possible tool to model wave propagation in complex, heterogeneous media. We illustrate the methodology by focusing on elasti…
Traveling and standing thermoacoustic waves in solid media
Haitian Hao, Carlo Scalo, Fabio Semperlotti
The most attractive application of fluid-based thermoacoustic (TA) energy conversion involves traveling wave devices due to their low onset temperature ratios and high growth rates…
Tomographic imaging of inhomogeneous non-local media using fractional order models
Salvatore Buonocore, Fabio Semperlotti
We investigate a generalized tomographic imaging framework applicable to a class of inhomogeneous media characterized by non-local diffusive energy transport. Under these condition…
Occurrence of anomalous diffusion and non-local response in highly-scattering acoustic periodic media
Salvatore Buonocore, Mihir Sen, Fabio Semperlotti
We investigate the occurrence of anomalous diffusive transport associated with acoustic wave fields propagating through highly-scattering periodic media. Previous studies had corre…
Experimental evidence of robust acoustic valley Hall edge states in a non-resonant topological elastic waveguide
Ting-Wei Liu, Fabio Semperlotti
This paper presents experimental evidence of the existence of acoustic valley Hall (AVHE) edge states in topological elastic waveguides. The fundamental lattice is assembled based…