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

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 …

Contemporary biomedical research requires development of novel techniques for sorting
and manipulation of cells within the framework of a microfluidic chip. The desired functions …

In vivo manipulation of biological cells has attracted considerable attention in recent years.
This process is particularly useful for precision medicine, such as cancer target therapy …

We present the results of a theoretical analysis focused on three-dimensional optical
trapping of non-spherical gold nanoparticles using a tightly focused laser beam (ie optical …

We investigated theoretically and numerically the optical pulling and pushing forces acting
on silicon (Si) nanospheres (NSs) with strong coherent interaction between electric and …

We present an experimental method based on a modified multiple beam interference
approach to generate an optical vortex array arranged in a spatially varying lattice. This …

Transport of an inertial Brownian particle in an oscillating potential is numerically
investigated in the presence of an external constant force. The oscillating potential can …

We provide a generic scheme to separate the particles of a mixture by their physical
properties like mass, friction, or size. The scheme employs a periodically shaken two …

By analyzing the thermal motion of fluorescent dielectric microbeads trapped in the near-
field of a silicon nanocavity, we investigate the influence of the bead's size and the trapping …