Acoustic tweezers use sound radiation forces to manipulate matter without contact. They
provide unique characteristics compared with the more established optical tweezers, such …

Optical tweezers (OTs) are innovative instruments utilized for the manipulation of
microscopic biological objects of interest. Rapid improvements in precision and degree of …

Complex vector light fields, classically entangled in polarization and phase, have become
ubiquitous in a wide variety of research fields. This has triggered the demonstration of a …

Usually a light beam pushes a particle when the photons act upon it. We investigate the
optical forces by nonparaxial gradientless beams and find that the forces can drag suitable …

Optical tweezers have had a major impact on bioscience research by enabling the study of
biological particles with high accuracy. The focus so far has been on trap** individual …

Optical trap** using focused laser beams has emerged as a powerful tool in the biological
and physical sciences. However, scaling this technique to nanosized objects remains …

We show that a freestyle laser trap, including high-intensity and phase gradient forces along
arbitrary curves, is able to confine multiple particles and drive their motion with the ability to …

Methods for controlling the motion of single particles, optically levitated in vacuum, have
developed rapidly in recent years. The technique of cold dam** makes use of feedback …