Scopri come la simulazione multifisica viene utilizzata per ricerca e sviluppo

In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.


Visualizza gli articoli presentati alla COMSOL Conference 2020

RF and Microwave Engineeringx

Numerical Study of Local Density of States in Photonic Crystal Waveguides

A. Javadi[1], P. Lodahl[1]
[1]Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark

In this contribution we study how a planar photonic crystal waveguide (PhCW), created by introducing a line defect in the photonic crystal, can modify the projected local density of states (LDOS) for a dipole emitter. We use the COMSOL Multiphysics® RF Module to carry out eigenvalue ... Per saperne di più

Optimization of 3D Layered Metal-Dielectric Stacks (MDS) for Near-Field Fluorescence Imaging

P.S. Tan[1], K. Elsayad[2], K. Heinze[1]
[1]Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
[2]Research Institute of Molecular Pathology (IMP), Vienna, Austria

Nano-structures consisting of layered metal-dielectric stacks (MDSs) can be designed to have evanescent transmission and reflection coefficients that oscillate as a function of transverse wavevector and frequency. However, these structures always suffer from the material losses and ... Per saperne di più

Universal Dielectric Response of Atmospheric Ice Using COMSOL Multiphysics®

U.N. Mughal[1], M.S. Virk[1], K. Zaman[1]
[1]Narvik University College, Narvik, Norway

Heterogeneous materials with different phases, are conductive and insulating (dielectric), and are physically present in different natural materials as e.g. atmospheric ice. Jonscher’s proposed ‘universal dielectric response’ is not sufficient for such materials, as it only reflects ... Per saperne di più

Thermoelastic Model for Microwave Ablation of Concrete

B. Lepers[1], S. Soldatov[1]
[1]Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology, Karlsruhe, Germany

The use of high power microwave energy for ablation of contaminated concrete is a promising technique to speed up the dismantling of nuclear power plants. A coupled simulation using COMSOL Multiphysics® finite element software is performed by solving the electromagnetic wave equation at ... Per saperne di più

Forces and Heating in Plasmonic Particles

M. Gonçalves[1], O. Marti[1]
[1]Ulm University - Inst. of Experimental Physics, Ulm, Germany

Plasmonic resonances arising in gold nanoparticles lead to strongly localized near-field enhancements. These enhancements generate strong field gradients that can be exploited in particle trapping. On the other hand plasmonic resonances lead to enhanced absorption and heat generation. ... Per saperne di più

COMSOL Multiphysics® Simulation of Chiral Molecule Interaction with Chiral Structures

I. Zabkov[1], V. Klimov[2], A. Pavlov[2], D. Guzatov[3]
[1]MIPT, Moscow, Russia
[2]Lebedev Physical Institute, Moscow, Russia
[3]Yanka Kupala Grodno State University, Grodno, Belarus

Influence of chiral objects on spontaneous emission of atoms and molecules is under attention nowadays. The problem of interaction of chiral molecules with one [1] or two chiral [2] spheres was solved analytically recently by our group. The analytical results however are very difficult ... Per saperne di più

COMSOL Multiphysics® Investigation of Radiative and Nonradiative Channels of Quantum Emitter Fluorescence near Hyperbolic Metamaterial

A. Pavlov[1], V. Klimov[1], I. Zabkov[2], D. Guzatov[3]
[1]Lebedev Physical Institute, Moscow, Russia
[2]Moscow Institute of Physics and Technology, Dolgoprudnj, Russia
[3]State University of Grodno, Grodno, Belarus

Effective control over single atom emission might lead to major breakthrough in the field of nanotechnology. It is believed that use of hyperbolic metamaterials (HMM) can be helpful. COMSOL Multiphysics® was used to model interaction of electric dipole with effective HMM and calculate ... Per saperne di più

Virtual Prototyping of a Microwave Fin Line Power Spatial Combiner Amplifier

A. Leggieri[1], F. Di Paolo[1], D. Passi[1]
[1]University of Rome "Tor Vergata" - Department of Electronic Engineering, Rome, Italy

This paper describes the Virtual Prototyping based on a COMSOL Multiphysics® simulation for a novel Microwave Fin Taper (FT) Spatial Power Combiner (SPC) Amplifier. The analyzed system is waveguide (WG) based, and uses FT Probes to convert the energy of a rectangular WG EM fundamental ... Per saperne di più

Self-Consistent Modeling of Thin Conducting Wires and Their Interaction with the Surrounding Electromagnetic Field

G. Eriksson[1]
[1]ABB AB, Corporate Research, Västerås, Sweden

It is demonstrated how the RF Module of COMSOL Multiphysics® can be used to approximately model thin conducting wires or cables and how they interact with a surrounding electromagnetic field. Despite being non-stringent the method can reasonably well predict currents induced by an ... Per saperne di più

Key-Holes Magnetron Design and Multiphysics Simulation

A. Leggieri[1], F. Di Paolo[1], D. Passi[1]
[1]Univeristy of Rome "Tor Vergata" - Department of Electronic Engineering, Rome, Italy

This paper describes the design and characterization of an 8 slots resonant cavity Magnetron, which undergoes thermal-structural effects due to cathode heating. The proposed study involves Thermal Stress, Eigen-frequency and Particle Tracing analysis based on COMSOL Multiphysics®. ... Per saperne di più