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

Optical forces can be used to manipulate biological and colloidal material in a non-contact
manner. This forms the foundation of a wealth of exciting science, particularly in the fields of …

A photon carries k of momentum, so it may be anticipated that light will 'push'on any object
standing in its path by means of the scattering force,,. In the absence of an intensity gradient …

The light-matter interaction has been at the heart of major advances from the atomic scale
right to the microscopic scale over the past four decades. Confinement by light, embodied by …

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 …

We study theoretically and experimentally the spatial intensity distribution of the zero-order
Bessel beam formed by the axicon which possess a rounded tip. Such a tip generates a …

Propulsive effects of light, which often remain unnoticed in our daily-life experience, manifest
themselves on spatial scales ranging from subatomic to astronomical. Light-mediated forces …

Due to their immunity to diffraction, Bessel light modes potentially offer advantages in
various applications. However, they do exhibit significant intensity variations along their …

Abstract “Non‐diffracting” beams do not spread as they propagate. This property is useful in
many areas. Here, the theory, generation, properties, and applications of various “non …

We demonstrate nanometer precision manipulation of multiple nanoparticles at room
temperature. This is achieved using the optical binding force, which has been assumed to …