Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Numerical Simulation of the Heat, Mass, and Momentum Transfer During the Microwave Drying of Osmodehydrated Porous Material - new

J. R. Arballo[1, 2], L. A. Campañone[1, 2], R. H. Mascheroni[1, 2]
[1]Universidad Nacional de La Plata (UNLP), La Plata, Buenos Aires, Argentina
[2]Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), La Plata, Buenos Aires, Argentina

Recent studies have been devoted to develop mathematical models to simulate the food processing using the porous media approach. The aim of this study is to simulate the microwave drying of osmodehydrated food by means of modeling the mass, energy and momentum transfer using the porous media approach. Microwave drying involves complex physical mechanisms which should be taken into account in the ...

Antenna and Plasmonic Properties of Scanning Probe Tips at Optical and Terahertz Regimes - new

A. Haidary[1], P. Grütter[1], Y. Miyahara[1]
[1]Physics Department, McGill University, Montreal, QC, Canada

A wide variety of near-field optical phenomena such as apertureless near-field scanning microscopy (ANSM) at optical and terahertz (THz) regimes and surface enhanced Raman scattering relies on the electric field enhancement at the end of a sharp tip. Achieving and controlling this electric field enhancement is a key challenge for a wide range of applications such as surface modification, data ...

Optimization of BAW Resonator for Wireless Applications Using Taguchi’s Orthogonal Array Method

R. Dudhe [1], A. Sumathy [1], T. Desai [1],
[1] Manipal University, Dubai, UAE

BAW (Bulk Acoustic Wave) resonators are rapidly growing highly integrated devices with wide range of applications in wireless domains. Fabrication of thin film BAW resonators are highly challenging over material selections and measures of materials. RF properties of BAW resonators depending on the device parameters are simulated for their performance using COMSOL Multiphysics software. In our ...

Periodically Poled Lithium Niobate Waveguides for Quantum Frequency Conversion - new

J. Toney[1], J. Retz[1], V. Stenger[1], A. Pollick[1], P. Pontius[1], S. Sriram[1]
[1]SRICO, Inc., Columbus, OH, USA

This paper presents techniques for modeling annealed proton exchange (APE) and reverse proton exchange (RPE) waveguides in periodically poled lithium niobate for application to optical frequency conversion. A combination of time-dependent diffusion modeling and electromagnetic mode analysis using the RF module are used to predict the relationship between the poling period and the second harmonic ...

Some Applications on the Fields of Laser, PCF and PCF-Sensor by COMSOL Software

J. Yao
Tianjin University, Tianjin, China

Academician Yao is an expert in nonlinear optics and THz studies and also a consultant of Chinese government for scientific development. In this talk, he introduces various research progress based on COMSOL Multiphysics analysis of his team, including photonic crystal devices (both telecom and THz band), THz lasers, nanophotonic devices, etc.. Moreover, he points out multiphysics analysis brings ...

Photonic Crystal Fibers for Visible Light Generation

D. Aydin [1], S. J. Cordette [1], C. Brès [1],
[1] EPFL, Lausanne, Vaud, Switzerland

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 the enhanced light confinement and the resultant high nonlinearity (γ) achievable with air-cladded designs. ...

Best Practices in EM Simulation in COMSOL Multiphysics®

M. Olsson [1]
[1] COMSOL AB, Stockholm, Sweden

This session addresses some common challenges in electromagnetic modeling and simulation. The introductory presentation will cover how to pick and choose between a large number of available formulations in three separate modules including the AC/DC Module, RF Module, and Wave Optics Module. Examples are discussed from wave propagation modeling to low frequency modeling. Topics covered ...

Calculation of Capacitances of Symmetrical Triple Coupled CPW Transmission Lines and Multilayer CPW Broadside Coupled Lines Balun

S. Musa[1], M. N. O. Sadiku[1]
[1]Prairie View A&M University, Prairie View, TX, USA

The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, the quasi-TEM analyses of symmetrical triple coupled Coplanar Waveguide (CPW) transmission lines and multilayer CPW broadside coupled-line balun are successfully ...

Thermal Analysis of Metamaterial for High Energy Microwave (HEM) Devices

Vaishali Rawat[1], Sougata Chatterjee[2], Shantanu Das[3], S.N.Kale[1]
[1]Defense Institute of Advanced Technology, Pune, India
[2]Giant Metrewave Radio Telescope,Tata Institute of Fundamental Research,Pune, India
[3]Reactor Control Division, B.A.R.C., & Adjunct Faculty, DIAT, Pune, India

Metamaterial [1, 2] is an artificially structured material where it’s electrical (ϵ), magnetic (μ) and its refraction properties (n) are simultaneously negative in narrow frequency band. Currently, metamaterials are being widely used in microwave and radio frequencies as devices [3, 4] like filter, coupler, antenna etc. However, the applicability of metamaterial as High Energy Microwave (HEM) ...

Plasmonics of Nano-Gaps - new

T. Hutter[1], S. Mahajan[2], S. R. Elliott[1]
[1]University of Cambridge, Cambridge, UK
[2]University of Southampton, Southampton, UK

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 very near to a metallic substrate is studied and discussed. Finite-element numerical simulations were used in ...