Orbital angular momentum (OAM) of light is an important feature of structured
electromagnetic fields exhibiting non-uniform spatial distribution. In contrast to a spin …

The orbital angular momentum of an optical vortex field is found to twist high viscosity donor
material to form a micron-scale 'spin jet'. This unique phenomenon manifests the helical …

We study photopolymerization with high-order Bessel light beams with phase singularities
on-axis. Self-trapping and self-focusing of propagation-invariant light beams in a …

We experimentally and theoretically characterize dielectric nano-and microparticle orbital
motion induced by an optical vortex of the Laguerre–Gaussian beam. The key to stable …

The optical manipulation of nanoscale objects via structured light has attracted significant
attention for its various applications, as well as for its fundamental physics. In such cases …

Recently, electrical sensing techniques of single small objects, such as nanoparticles,
viruses, and biomolecules, have attracted much attention. However, fine-tuning of a sensing …

Resistive-pulse analysis is a powerful tool for identifying micro-and nanoscale objects. For
low-concentration specimens, the pulse responses are rare, and it is difficult to obtain a …

In this paper, we demonstrate nanoparticle flow control using an optical force in a confined
nanospace. Using nanofabrication technologies, all-quartz-glass nanoslit channels with a …

Micro-and nanoparticles in a solution under the irradiation of an optical vortex are
considered using a mathematical model based on fluid mechanics. The particles exhibit an …

Quantitative evaluation of optical forces on nanoscale objects caused by optical vortices is
significant for application of optical vortex to nanotechnology. In this study, we analyze an …