333 citations · 628 across the 5 of their papers we have counts for
4 papers · 1 filter
Bound modes in the continuum based phononic waveguides
Adib Rahman, Raj Kumar Pal
We analytically predict and numerically demonstrate the existence of a family of bound modes in the continuum (BICs) in bi-layered spring mass chains. A coupled array of such chain…
Topological bands and localized vibration modes in quasiperiodic beams
Raj Kumar Pal, Matheus I. N. Rosa, Massimo Ruzzene
We investigate a family of quasiperiodic continuous elastic beams, the topological properties of their vibrational spectra, and their relation to the existence of localized modes.…
Edge states and topological pumping in elastic lattices with periodically modulated coupling
Matheus I. N. Rosa, Raj Kumar Pal, José R. F. Arruda +1
We investigate the dispersion topology of elastic lattices characterized by spatial stiffness modulation. The modulation is defined by the sampling of a two-dimensional surface, wh…
Amplitude-dependent topological edge states in nonlinear phononic lattices
Raj Kumar Pal, Javier Vila, Michael Leamy +1
This work investigates the effect of nonlinearities on topologically protected edge states in one and two-dimensional phononic lattices. We first show that localized modes arise at…