Glasses, in their different forms and compositions, have special properties that are not found
in other materials. The combination of transparency and hardness at room temperature …

The detection and monitoring of physical, chemical and biomedical parameters are
increasingly reliant on fiber-optic sensing technology. Of applicable optical methods …

NaYF_4: Eu nanorods with high aspect ratios are elaborated and optically trapped using
dual fiber optical tweezers in a counterpropagating geometry. High trapping efficiency is …

Optical fibre micro/nano tips (OFTs), defined here as tapered fibres with a waist diameter
ranging from a few microns to tens of nanometres and different tip angles (ie, from tens of …

A biosensor is a promising alternative tool for the detection of clinically relevant analytes.
Optical fiber as a transducer element in biosensors offers low cost, biocompatibility, and lack …

Optical fiber sensors, thanks to their compactness, fast response and real-time
measurements, have a large impact in the fields of life science research, drug discovery and …

In this work, step-index optical fibers with up to 0.88 numerical aperture (NA) were designed,
modeled, fabricated, and tested. Both ray-tracing and wave-optics propagation analysis …

In this work, a set of analytical expressions to tailor the numerical aperture of cone-shaped
step optical fibers is proposed. The expressions are derived from the geometrical study of …

Cancer is the second leading cause of death globally. Early diagnosis can allow intervention
to reduce mortality but due to cancer complex structure and spatial heterogeneity among …

Since the pioneering work of Taylor, the analysis of flow regimes of incompressible, viscous
fluids contained in circular Couette systems with independently rotating cylinders have …