45 citations · 166 across the 10 of their papers we have counts for
10 papers
Unidirectional Zero Reflection and Perfect Absorption via Exceptional Points in Active Piezoelectric Willis Metamaterials
Hrishikesh Danawe, Serife Tol
Electro-momentum coupling in piezoelectric metamaterials with broken inversion symmetry enables asymmetric elastic wave transport by linking macroscopic electric fields to momentum…
Conformal Gradient Index Phononic Crystal Lenses: Theory and Application on Non-planar Structures
Hrishikesh Danawe, Serife Tol
The gradient index phononic crystal (GRIN-PC) lens concept has been proven very effective for focusing elastic waves at a desired location. Although well-studied for planar structu…
Electro-momentum coupling tailored in piezoelectric metamaterials with resonant shunts
Hrishikesh Danawe, Serife Tol
Local microstructural heterogeneities of elastic metamaterials give rise to non-local macroscopic cross-coupling between stress-strain and momentum-velocity, known as Willis coupli…
Broadband Subwavelength Imaging of Flexural Elastic Waves in Flat Phononic Crystal Lenses
Hrishikesh Danawe, Serife Tol
Subwavelength imaging of elastic/acoustic waves using phononic crystals (PCs) is limited to a narrow frequency range via the two existing mechanisms that utilize either the intense…
Electroelastic metasurface with resonant piezoelectric shunts for tunable wavefront control
Zhenkun Lin, Serife Tol
This study presents a tunable phase-modulated metasurface composed of periodically distributed piezoelectric patches with resonant-type shunt circuits. The fully coupled electromec…
Anomalous wavefront control via nonlinear acoustic metasurface through second-harmonic tailoring and demultiplexing
Zhenkun Lin, Yuning Zhang, K. W. Wang +1
We propose a nonlinear acoustic metasurface concept by exploiting the nonlinearity of the locally resonant unit cells formed by curved beams. The analytical model is established to…
Finite-Frequency Topological Maxwell Modes in Mechanical Self-Dual Kagome Lattices
Hrishikesh Danawe, Heqiu Li, Kai Sun +1
In this Letter, an elastic twisted kagome lattice at a critical twist angle, called self-dual kagome lattice, is shown to exhibit peculiar finite-frequency topological modes which…
Existence of Corner Modes in Elastic Twisted Kagome Lattices
Hrishikesh Danawe, Heqiu Li, Hasan Al Ba'ba'a +1
This Letter investigates the emergence of corner modes in elastic twisted Kagome lattices at a critical twist angle, known as self-dual point. We show that a special type of corner…
Experimental realization of negative refraction and subwavelength imaging for flexural waves in phononic crystal plates
Hrishikesh Danawe, Serife Tol
In this paper, we numerically and experimentally demonstrate negative refraction of flexural waves in phononic crystal(PC) plates which is employed for designing flat elastic lense…
Piezoelectric metastructures for simultaneous broadband energy harvesting and vibration suppression of traveling waves
Zhenkun Lin, Hasan Al Ba'ba'a, Serife Tol
In this paper, we explore an electromechanical metastructure consisting of a periodic array of piezoelectric bimorphs with resistive-inductive loads for simultaneous harvesting and…