Articles techniques et présentations

Plasmonics is a new branch of the fascinating field of photonics and develops concepts to quench light beyond the diffraction limit and enhance electromagnetic fields. These enhancements occur in metals as localized surface plasmon polaritons (LSP) a coupling of the surface density ... En savoir plus

The scaling down of Copper interconnects is an effective approach to increasing the number of signal I/O lines and performance in advanced fine-pitch packaging. However, as dimensions are reduced, the risk of electromigration-induced failures in the copper interconnects becomes ... En savoir plus

In circuit breakers, short-circuit breaking involves extreme conditions linked to the presence of an intense electric arc. This requires the use of specific electrical contacts consisting of a contact tip and its support. SCHNEIDER ELECTRIC uses the resistance sintering technique for the ... En savoir plus

Lyophilization is a food preservation process that allows to inhibit the growth of bacteria and other contaminants by removing water content in the processed food. Conventional vacuum dryers provide heat by thermal conduction to assist the phase change transformation, but if the product ... En savoir plus

Attosecond light pulses have revolutionized our view of fundamental atomic, molecular and solid state processes in the attosecond - femtosecond time domain [1]. The availability of such pulses is based on high-order harmonic generation (HHG) in noble gas samples by a femtosecond laser ... En savoir plus

Metamaterials are composites of subwavelength structures that can be engineered to affect the propagation of a wave in specific ways as it travels through the material. While metamaterials can be used with any type of wave, they are most commonly found in electromagnetic waves. However, ... En savoir plus

This paper deals with the numerical simulation of Annular Linear Induction Pump (ALIP) using Finite Element Method based software COMSOL Multiphysics® . ALIP is used for pumping of liquid sodium in various experimental facilities and in auxiliary circuits of fast reactors. Usually, the ... En savoir plus

With the use of COMSOL Multiphysics®, a full characterization of star shaped geometry structures of silver-zinc oxide (Ag-ZnO-Au) study is presented. Analysis with different thicknesses of gold cover, as well as with different lengths and additional arrangements of the structure have ... En savoir plus

We present the model of THz sensor based on thermoelectric Bi-Sb thin films. The model is based on an electromagnetic heating interface and combines radiofrequency and heat transfer modules. The studied frequency was 0.14 THz, irradiation power 30 mW. Films had a thickness of 150 nm and ... En savoir plus

The aim of this work is to compute the mechanical stresses in power transformer winding due to an external short-circuit event. This event can be considered as one of the most demanding load conditions and many details such as material type, type of constraints, winding geometry ... En savoir plus