Consultez les proceedings de la Conference COMSOL 2020
Plasmonic Properties of Bimetal Nanoshell Cylinders and Spheres
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
Enhanced Surface Plasmon Polariton Propagation Induced by Active Dielectrics
We present numerical simulations for the propagation of surface plasmon polaritons in a dielectric-metal-dielectric waveguide using COMSOL Multiphysics® software. We show that the use of an active dielectric with gain that compensates metal absorption losses enhances substantially ... En savoir plus
Virtual Prototype of a Dielectric Window for High-Power Microwave Tubes
This paper describes the Virtual Prototype of a Dielectric Window or High Power Microwave Vacuum Tubes and Linear Accelerators. Design formulas are provided and Computer Aided Design techniques based on COMSOL Multiphysics® software are proposed. The virtual prototype considers the ... En savoir plus
Plasmonics of Nano-Gaps
Plasmons, i.e. the collective oscillations of electrons in a metallic nano-structure, lead to strong light scattering, absorption and an enhancement of the local electromagnetic field. In this work, the local electric-field enhancement in a system of dielectric nanoparticles placed ... En savoir plus
Biological Effects of Microwave Radiation
Microwave technology has provided with many exciting new therapeutic and diagnostic methods. Frequencies from RF as low as 400 kHz through microwave frequencies as high as 10 GHz are presently used for therapeutic applications in areas such as cardiology, urology, surgery, ophthalmology, ... En savoir plus
Microwave Heating Simulation of Frozen Pie
This research studies the thermal effect of frozen pie heating in the microwave oven. Considering as composite material, the properties of pie derived based on its composition. Here the package, susceptor’s influence to the temperature distribution is also studied. En savoir plus
Modeling the Effect of Headspace Steam on Microwave Heating of Mashed Potato
Introduction: Domestic microwave ovens are widely used to heat food products, because of rapid and convenient heating. Nonuniform heating is the biggest issue in microwave heating process, which also causes food quality and safety issues. Microwave heating models are promising tools to ... En savoir plus
Microwave Exposure System for In Vitro and In Vivo Studies
A computer controlled microwave exposure system and specialized applicators were constructed for the purpose of facilitating accurate observations of microwave radiation effects on uninfected and infected biological tissue in vitro and in vivo under different electromagnetic modalities ... En savoir plus
Improving Heating Uniformity of Dried Fruit in RF Treatments for Pest Control: Model Development and Validation
Non-uniform heating is one of the most important challenges during the development of radio frequency (RF) heat treatments for pest control. A computer simulation model using finite element–based COMSOL Multiphysics® software was developed to investigate the heating uniformity of raisins ... En savoir plus
CFD/Electromagnetics Interactions via Realistic Heat and Mass Transfer to Moist Substrates
Localized convection heat and mass transfer can be intensified and optimized by providing exposure to electromagnetic energy. Conjugate heat and mass transfer are configured by solving the momentum, heat and mass transfer simultaneously in both solid (substrate, comprising of a two-phase ... En savoir plus