The possibility for the manipulation of many different samples using only the light from a
laser beam opened the way to a variety of experiments. The technique, known as Optical …

Generally, an optical vortex lattice (OVL) is generated via the superposition of two specific
vortex beams. Thus far, OVL has been successfully employed to trap atoms via the dark …

We experimentally demonstrate a class of tractor beams created by coherently superposing
coaxial Bessel beams. These optical conveyors have periodic intensity variations along their …

We show that submicrometer silicon spheres, whose polarizabilities are completely given by
their two first Mie coefficients, are an excellent laboratory to test effects of both angle …

The coherent combination of electric and magnetic responses is the basis of the
electromagnetic behavior of new engineered metamaterials. The basic constituents of their …

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

Radiative corrections to the polarizability tensor of isotropic particles are fundamental to
understand the energy balance between absorption and scattering processes. Equivalent …

In optics, to generate vortex beams, we normally need specific man-made structures such as
spiral phase plates and computer-generated holograms. On the other hand, wave diffraction …

To date investigations of the dynamics of driven colloidal systems have focused on
hydrodynamic interactions and often employ optical (laser) tweezers for manipulation …

Current optical manipulation techniques rely on carefully engineered setups and samples.
Although similar conditions are routinely met in research laboratories, it is still a challenge to …