In this Letter, we present the first experimental demonstration of the temporal refraction of
acoustic waves in a phononic lattice. A step change in grounding stiffness results in a …

The modern construction revolution throughout the past two decades has brought the need
for ground vibration mitigation, and this has been one of the major study areas. These …

Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in
wave manipulation. We demonstrate the inverse design of phononic dispersion using …

Constructions of synthetic lattices in modulated ring resonators attract growing attention to
interesting physics beyond the geometric dimensionality, where complicated connectivities …

We investigate the relation between topological and vibrational properties of networked
materials by analyzing, both numerically and analytically, the properties of a random spring …

Parametric amplification—injecting energy into waves via periodic modulation of system
parameters—is typically restricted to specific multiples of the modulation frequency …

This study introduces the concept of nonlocal effect into a monoatomic mass–spring periodic
structure, leading to unique characteristics of dispersion curves. Through the incorporation …

Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in
wave manipulation. We demonstrate inverse design of phononic dispersion using non-local …

We observe maxon-like dispersion of ultrasonic guided waves in elastic metamaterials
consisting of a rectangular beam and an array of cylindrical resonators. The pillars act as …

Dispersionless flat bands can be classified into two types:(1) non-singular flat bands whose
eigenmodes are completely characterized by compact localized states, and (2) singular flat …