Optical manipulations utilizing the mechanical effect of light have been indispensable in
various disciplines. Among those various manipulations, optical pulling has emerged …

Usually, an unfocused light beam, such as a paraxial Gaussian beam, can exert a force on
an object along the direction of light propagation, which is known as light pressure …

Structured waves are ubiquitous for all areas of wave physics, both classical and quantum,
where the wavefields are inhomogeneous and cannot be approximated by a single plane …

Amphibious robots can undertake various tasks in terrestrial and aquatic environments for
their superior environmental compatibility. However, the existing amphibious robots usually …

The origin of the idea of moving objects by acoustic vibration can be traced back to 1787,
when Ernst Chladni reported the first detailed studies on the aggregation of sand onto nodal …

Flow visualization technologies such as particle tracking velocimetry are broadly used for
studying three-dimensional turbulent flow in natural and industrial processes. Despite the …

We demonstrate that waves excited on a fluid surface produce local surface rotation owing
to hydrodynamic nonlinearity. We examine theoretically the effect and obtain an explicit …

The control of matter motion at liquid–gas interfaces opens an opportunity to create two-
dimensional materials with remotely tunable properties. In analogy with optical lattices used …

Nature has evolved a vast array of strategies for propulsion at the air-fluid interface. Inspired
by a survival mechanism initiated by the honeybee (Apis mellifera) trapped on the surface of …

Optical pulling provides a new degree of freedom in optical manipulation. It is generally
believed that long-range optical pulling forces cannot be generated by the gradient of the …