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
Optical Trapping on Waveguides
On the surface of an optical waveguide, there is an evanescent field. The evanescent field decays fast and this steep gradient can be used to pull nano- and microparticles down towards the waveguide surface. Radiation forces will propel the particle forward along the waveguide. Trapping ... Per saperne di più
Nonlinear Optics in Plasmonic Nanostructures
The unique optical properties of plasmon resonances in noble metal nanoparticles have been extensively investigated owing to their ability to enhance the electric field amplitude but also to tailor its spectral and spatial distribution. Among all application domains, nonlinear optics ... Per saperne di più
Enhanced Second-Harmonic Generation in AlGaAs Nanoantennas
We designed AlGaAs all-dielectric nanoantennas with magnetic dipole resonance at near-infrared wavelengths. These devices are shaped as cylinders of 400nm height and radii varying from 175 nm up to 230 nm. We analyzed volume χ(2) nonlinear effects associated to a magnetic dipole ... Per saperne di più
Heating of Metal Nanoparticles on Absorbing Substrates
It is well-known that metal nanoparticles (NPs) excited at the plasmon frequency not only exhibit peculiar optical properties (e.g., a peak in the extinction spectrum, an enhanced electromagnetic near-filed) but also heat up [1]. This phenomenon is highly investigated for medical ... Per saperne di più
Photonic Crystal Fibers for Visible Light Generation
There has been a growing interest in optical parametric amplifiers (OPA) for light generation and amplification in because of the possibility for arbitrary operation wavelength and wideband tenability [1]. PCFs are of particular interest in such nonlinear optics applications because of ... Per saperne di più
Dielectric Adaptive Optical Gels
Adaptive Optics is common sense, since many people use digital cameras with electromechanical iris actors on elastic autofocus lenses. This project tries to create a COMSOL Multiphysics based mathematical model of adaptive optics with electrostatically induced deformation of dielectric ... Per saperne di più
Study of Energy Transfer Mechanism for a Synchrotron X-ray Gas Absorber with COMSOL Multiphysics
The high power of X-ray beam delivered by synchrotrons and free electron lasers, up to 240 W/mm2, requires heat load management solutions to obtain the best performance from the optical elements which will shape the beam for its use in the experimental stations [1]. One solution is the ... Per saperne di più
Ultrafast Effects in 3D Metamaterials
The extraordinary electromagnetic response of nanostructured material, usually made up of a metallic structures distributed in within a dielectric matrix has attracted a lot of interest in recent years. These materials are technically called metamaterial (MM) since they possess ... Per saperne di più
Assessment of Diffuse Optical Tomography Image Reconstruction Methods Using a Photon Transport Model
Imaging of tissue with near-infrared diffuse optical tomography is emerging as a practical method to map hemoglobin concentrations within tissue for breast cancer detection and diagnosis. The accurate recovery of images by using numerical modeling requires an effective image ... Per saperne di più
Design of Solar Thermal Dryers for 24-hour Food Drying Processes
Solar drying is a ubiquitous method that has been adopted for many years as a food preservation method. Most of the published articles in the literature provide insight on the performance of solar dryers in service but little information on the dryer construction material selection ... Per saperne di più