Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …

We introduce a new open-source software package written in Python to design and model
micro optical elements, such as diffractive lenses, holograms, as well as other components …

Realisation of a perfect absorber A= 1 with transmittance and reflectance T= R= 0 by a thin
metasurface is one of the hot topics in recent nanophotonics prompted by energy harvesting …

Compact and minimally invasive scanning fiber endoscopy probes with micron-level
resolution have great potential in detailed tissue interrogation and early disease diagnosis …

We demonstrate a concept and fabrication of lithography-free layered metal-SiO2 thin-film
structures which have reduced reflectivity (black appearance), to as low as 0.9%, with 4.9 …

We propose a new method for integrating metasurfaces in optical design using semi-
analytical modeling of dielectric nanostructures. The latter computes the output phase of an …

Emerging applications of optical technologies are driving the development of miniaturised
light sources, which in turn require the fabrication of matching micro-optical elements with …

A simple measurement technique is proposed for multi-pitched grating inserted in an
external cavity diode laser. Measuring grating rotation and variation of multiple resonant …

The applications of terahertz (THz) technology can be greatly extended using non-diffractive
beams with unique field distributions and non-diffractive transmission characteristics. Here …

Colloidal quantum dots (CQDs) have been intensively investigated over the past decades in
various fields for both light detection and emission applications due to their advantages like …