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 …

We demonstrate stable three-dimensional (3D) single-beam optical trapping of gold
nanoparticles with diameters between 18 and 254 nm. Three-dimensional power spectral …

The measurement of the elastic properties of cells is widely used as an indicator for cellular
changes during differentiation, upon drug treatment, or resulting from the interaction with the …

We performed efficient optical trapping combined with sensitive optical detection of
individual silver nanoparticles. The particles ranging in size from 20 to 275 nm in diameter …

We report a quantitative analysis of the forces acting on optically trapped single gold
nanorods. Individual nanorods with diameters between 8 and 44 nm and aspect ratios …

The efficiency of an optical trap is limited by its axial strength. Light focused by oil-immersion
objectives provides stronger traps but suffers from spherical aberrations, thus restricting the …

Optical tweezers have revolutionized our understanding of the microscopic world. Axial
optical tweezers, which apply force to a surface-tethered molecule by directly moving either …

" Alberto Diaspro has been choreographing light's dance for over 20 years, and in
Nanoscopy and Multidimensional Optical Fluorescence Microscopy, he has assembled a …

We combine optical tweezers with feedback to impose arbitrary potentials on a colloidal
particle. The feedback trap detects a particle's position, calculates a force based on an …

We demonstrate a method for the optical trapping of solid aerosol particles. Suspension of
silica particles in ethanol allows their delivery to the trapping volume using a commercial …