Optical methods to manipulate and detect nanoscale objects are highly desired in both
nanomaterials and molecular biology fields. Optical tweezers have been used to manipulate …

We discuss the enhancement of Raman signals using a photonic nanojet generated by
dielectric microspheres. The highly confined field of the nanojet leads to an order of …

Photonic nanojets, highly focused beams of light created by planar illumination of a
microsphere, have been shown to produce narrow subwavelength beams over distances of …

In this study, we present and demonstrate a new route to the fabrication of plasmonic
nanostructures with a controlled size and shape using photonic nanojet lithography …

We report on the calculations of optical radiation scattering at micrometer-sized conical-
shape dielectric particles (microaxicons) with special attention given to the specific spatially …

Engineered microsphere possesses the advantage of strong light manipulation at sub-
wavelength scale and emerges as a promising candidate to shrink the focal spot size. Here …

A photonic nanojet (PNJ) is a highly confined light beam formed by a transparent particle
under light wave illumination. Here, we propose and numerically investigate the PNJ formed …

We have shown experimentally that square-profile microsteps on a silica substrate, with
square sides of 0.4, 0.5, 0.6, and 0.8 μm and height of 500 nm, illuminated through the …

A photonic nanojet is a highly focused optical beam with a subwavelength waist on the
shadow side of the sphere. Successful far-field applications require long nanojets that …

A particle can function as a refractive lens to focus a plane wave, generating a narrow, high
intensive, weak‐diverging beam within a sub‐wavelength volume, known as the 'photonic …