Many efforts have been devoted to the design and achievement of negative-refractive-index
metamaterials since the 2000s,,,,,,,. One of the challenges at present is to extend that field …

Resonance phenomena occur with all types of vibrations or waves and may play a part in
spectacular events, such as the collapse of structures—for example, the fall of the Broughton …

When nanoparticles in Brownian motion in liquid are irradiated with ultrasonic waves in the
megahertz frequency range, scattering from the particles occurs, albeit at a very low …

Experiments on ultrasound propagation through a gel doped with resonant encapsulated
microbubbles provided evidence for a discontinuous transition between wave propagation …

Ultrasonic waves are widely employed in medical diagnosis and non‐destructive testing to
observe the condition of fetuses and to study non‐transparent materials, respectively …

We identify an acoustic process in which the conversion of angular momentum between its
spin and orbital form takes place. The interaction between an evanescent wave propagating …

Dynamic ultrasound scattering allows us to investigate the particle motion and its average
size via the time-evolution analysis of the scattering amplitude in optically turbid media …

Materials with designed microscale architectures, like microlattices, can achieve extreme
mechanical properties. Most studies of microlattices focus on their quasistatic response, but …

The potential of proton therapy to improve the conformity of the delivered dose to the tumor
volume is currently limited by range uncertainties. Injectable superheated nanodroplets …

The acoustical properties of silica microcapsules synthesized by the interfacial
polymerization of sodium silicate were studied by ultrasound spectroscopy. The …