We present a new theoretical and numerical framework for the study of the optical properties of micrometric and nanometric three-dimensional structures of arbitrary shape. We show that the field distribution induced inside and outside such a structure by different external monochromatic sources can be obtained from a unique generalized field propagator expressed in direct space. An application ...

In materials science, the knowledge of thermal properties thin films on thick substrates is crucial in determining role film physical entire system. Even though can be very important, determination its a challenging task due to fact that contribution heat transfer generally hard single out from influence substrate. Herein, simple analytical methodology, based photoacoustic technique, useful cha...

The oscillatory motion of a fluid carrying micron-sized particles inside a capillary tube is investigated experimentally. It is found that initially uniformly distributed particles can segregate and accumulate to form regularly spaced micron-sized particle clusters. The wavelength of the microclusters is compared to data for macroscale sand-ripple patterns and found to obey the same universal s...

Precise microanalytical techniques are essential in many fields such as cultural heritage materials, showing complex layered microstructures containing a wide range of materials of diverse nature and hardness. Noninvasive sample manipulation and preparation is required to avoid, as much as possible, sample contamination, which may strongly limit the materials identification. The method proposed...

Polyetheretherketone (PEEK) composites exhibit high stiffness, chemical stability, and heat resistance they are therefore employed in applications under severe operating environments. This work aims to provide insight into the effect of size, concentration, type fillers on thermal mechanical properties PEEK. A total 32 used highlight influence nature (lamellae, such as boron nitride graphite si...