Acoustic actuation of fluids at small scales may finally enable a comprehensive lab-on-a-
chip revolution in microfluidics, overcoming long-standing difficulties in fluid and particle …

Acoustic vortices provide a single-beam approach to manipulate objects with sizes from
nanometers to millimeters, gaining increasing interest in recent years. The helical beam …

Today, surface acoustic waves (SAWs) and bulk acoustic waves are already two of the very
few phononic technologies of industrial relevance and can been found in a myriad of …

We use acoustic resonances in a planar layer of half-wavelength thickness to twist wave
vectors of an in-coming plane wave into a spiral phase dislocation of an outgoing vortex …

Acoustical tweezers based on focalized acoustical vortices hold the promise of precise
contactless manipulation of millimeter down to submicrometer particles, microorganisms …

Acoustic tweezers have recently raised great interest across many fields including biology,
chemistry, engineering, and medicine, as they can perform contactless, label-free …

Wave fields with orbital angular momentum (OAM) have been widely investigated in
metasurfaces. By engineering acoustic metasurfaces with phase gradient elements, phase …

Despite increasing demand in the manipulation of nanoscale objects for next generation
biological and industrial processes, there is a lack of methods for reliable separation …

Acoustofluidics offers contact-free manipulation of particles and fluids, enabling their uses in
various life sciences, such as for biological and medical applications. Recently, there have …

Based on the Huygens-Fresnel principle, a metasurface structure is designed to generate a
sound vortex beam in airborne environment. The metasurface is constructed by a thin planar …