Since the invention of optical tweezers, optical manipulation has advanced significantly in
scientific areas such as atomic physics, optics and biological science. Especially in the past …

The idea of using optical beams to attract objects has long been a dream of scientists and
the public alike. Over the years, a number of proposals have attempted to bring this concept …

Undoubtedly, laser tweezers are the most recognized application of optically induced
mechanical action. Their operation is usually described in terms of conservative forces …

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 …

The determination of optical force as a consequence of momentum transfer is inevitably
subject to the use of the proper momentum density and stress tensor. It is imperative and …

We report an ingenious mechanism to obtain robust optical pulling force by a single plane
wave via engineering the topology of light momentum in the background. The underlying …

Optical tractor beams capable of pulling particles backward have garnered significant and
increasing interest. Traditional optical tractor beams are limited to free space beams with …

Progress in light scattering engineering made it feasible to develop optical tweezers
allowing capture, hold, and controllable displacement of submicrometer-size particles and …

We achieve long-range and continuous optical pulling in a periodic photonic crystal
background, which supports a unique Bloch mode with the self-collimation effect. Most …

This paper investigates the singular optics of nonparaxial light beams in the near field when
the light behaves as a tractor beam. New insights into the optical pulling force, which is …