Spatiotemporal vortices of light, featuring transverse orbital angular momentum (OAM) and
energy circulation in the spatiotemporal domain, have received increasing attention recently …

Worldwide research in microrobotics has exploded in the past two decades, leading to the
development of microrobots propelled in various manners. Despite significant advances in …

Cilial pumping is a powerful strategy used by biological organisms to control and manipulate
fluids at the microscale. However, despite numerous recent advances in optically …

When photons interact with matter, forces and torques occur due to the transfer of linear and
angular momentum, respectively. The resulting accelerations are small for macroscopic …

As they travel through space, some light beams rotate. Such light beams have angular
momentum. There are two particularly important ways in which a light beam can rotate: if …

Optical tweezers use the forces exerted by a strongly focused beam of light to trap and move
objects ranging in size from tens of nanometres to tens of micrometres. Since their …

There is great interest in the development of micromotors which can convert energy to
motion in sub-millimeter dimensions. Micromachines take the micromotor concept a step …

Since their invention in 1986 by Arthur Ashkin and colleagues, optical tweezers have
become an essential tool in several fields of physics, spectroscopy, biology …

We demonstrate controlled rotation of optically trapped objects in a spiral interference
pattern. This pattern is generated by interfering an annular shaped laser beam with a …

Optical tweezers are commonly used for manipulating microscopic particles, with
applications in cell manipulation, colloid research,,, manipulation of micromachines and …