Consultez les proceedings de la Conference COMSOL 2020
Plane-wave Expansion based modelling of Cassegrain-type Reflective Objective
Cassegrain-type reflective objectives are widely utilized when performing high resolution infrared optical micro-spectroscopy experiment. Experiments involving the mixing of two or more colors of photons, widely separated in wavelength, greatly benefit from such mirror-based objectives ... En savoir plus
Third harmonic generation from multilayer Van der Waals nanophotonic structure
Multilayer transition metal dichalcogenides (TMDCs) are an emerging class of dielectric materials with promising applications in modern nanophotonics. They exhibit a much higher refractive index (~ 4 - 4.5) than traditional semiconducting materials like Silicon (~ 3.5) in the near ... En savoir plus
Topologically enhanced guided mode resonance sensing of fluid refractive index variations
The present work explores the integration of guided mode resonance (GMR) structures and topological photonics, characterized by the presence of Jackiw-Rebbi (J-R) solution. The developed surface enhanced GMR structure may serve as a platform for refractive index sensing across various ... En savoir plus
Calibration of thermal model to simulate laser assisted bonding process
In this poster we present the results of the strategy for calibrating the COMSOL Multiphysics® model to simulate the laser bonding process (LADB) of Mems chips. A specific aspect of this work is to calibrate the COMSOL Multiphysics® heat model loss by measuring with a miniature ... En savoir plus
Simulation of Nonlinear Optical Absorption in Silicon Optical Waveguide
From the perspective of nonlinear silicon photonics, the strong light confinement in sub-micron sized silicon waveguides increases the effective nonlinearity. However, the high optical power density in the waveguide core also increase nonlinear absorption and hence the device self ... En savoir plus
Metamaterial design for ideal solar absorber using multiscale simulations on COMSOL Multi-physics
The renewable energy sector faces challenges in production processes due to geo-economic, and environmental issues. This had led to an increased interest in the use of solar energy as an alternative to fossil fuel based energy sources. In the solar energy field, significant research ... En savoir plus
Optimizing and Improving the Intensity Flux in a Reflective Type Laser Focusing system
Abstract. A Laser Focusing system (LFS) focuses a single laser beam (single Channel) or multiple laser beams (multi - channel) onto a surface (Specimen). The general motive of a LFS is to focus a train of brief pulses or a continuous beam of light onto a Specimen which heats up its ... En savoir plus
Optical Performance Assessment of a Solar Collector with a Static Concentrator
In this paper a specific version of radiation collecting troughs is investigated. The trough arrangement has a shape which is a combination of a circular arc and adjacent parabolic curve pieces based on a paper by Tripanagnostopoulos [1]. An absorbing tube can be placed at varying ... En savoir plus
FEM modeling of highly strained monocrystalline ZnTe/CdTe core-shell hetero-nanowires
The monocrystalline semiconductor nanowires (NWs) attract great interest as they reveal new properties that differs from the ones of the bulk equivalents. In addition to small size (10-100 nm diameter), one of their advantages is extremely high surface to volume ratio. This determines ... En savoir plus
Multi-Mirror Array Calculations with Optical Error
The optical performance of a 2-axis solar concentrator was simulated with the COMSOL Multiphysics® software. The concentrator consists of a mirror array, which was created using the application builder. The mirror facets are preconfigured to form a focal point. During tracking all ... En savoir plus