Wave Optics Blog Posts
Simulation Paves the Way for More Efficient OLED Devices
When it comes to creating the next generation of flat panel displays and solid-state area lighting, organic light-emitting diodes, or OLEDs, may be used to help. While recognized for its various advantages, this emerging technology suffers from some weaknesses that reduce its overall efficiency. One such example is light loss, which is partially caused by the plasmon coupling effect. Looking to reduce the effect’s prominence in OLED devices, researchers from Konica Minolta Laboratory turned to the COMSOL Multiphysics® software.
Simulating Holographic Data Storage in COMSOL Multiphysics
Physicist and electrical engineer Dennis Gabor invented holography about 70 years ago. Ever since then, the form of optical technology has developed in many different ways. In this blog post, part one in a series, we talk about a specific industrial application of holograms in consumer electronics and demonstrate how to use COMSOL Multiphysics to simulate holograms in a wide spectrum of optical and numerical techniques.
Modeling Phononic Band Gap Materials and Structures
Today, guest blogger and Certified Consultant Nagi Elabbasi of Veryst Engineering shares simulation research designed to optimize band gaps for phononic crystals. Phononic crystals are rather unique materials that can be engineered with a particular band gap. As the demand for these materials continues to grow, so does the interest in simulating them, specifically to optimize their band gaps. COMSOL Multiphysics, as we’ll show you here, can be used to perform such studies.
Model Cables and Transmission Lines in COMSOL Multiphysics
Electrical cables are classified by parameters such as impedance and power attenuation. In this blog post, we consider a case for which analytic solutions exist: a coaxial cable. We will show you how to compute the cable parameters from a COMSOL Multiphysics simulation of the electromagnetic fields. Once we understand how this is done for a coaxial cable, we can then compute these parameters for an arbitrary type of transmission line or cable.
Simulation Improves Electromagnetic IED Detection Systems
Locating and removing landmines and other improvised explosive devices (IEDs) is an important yet challenging task, especially with new advancements in cloaking technology. Using COMSOL Multiphysics® software, one team of researchers studied electromagnetic detection for subsurface objects to better understand the technique and improve its accuracy.
App: Measuring the Diffraction Efficiency of a Wire Grating
Diffraction gratings are often used as a tool for bending and spreading light in optical instruments. Analyzing the diffraction efficiency of such optical components is important, as this can affect the instrument’s performance. Simulation offers an efficient way for testing various grating designs to achieve an optimal configuration. By creating a simulation app, you can further expedite this process, extending simulation capabilities to a wider audience. Our Plasmonic Wire Grating Analyzer demo app highlights this approach.
Should We Model Graphene as a 2D Sheet or Thin 3D Volume?
Within the research community — and on the COMSOL Blog — graphene has been a topic of great interest. The unique properties that make this material so remarkable can also make it challenging to analyze. In simulation, a particularly difficult question to address is whether graphene should be modeled as a 2D sheet or a thin 3D volume. We provide answers to this question in today’s blog post.
Guide to Frequency Domain Wave Electromagnetics Modeling
Over the last several weeks, we’ve published a series of blog posts addressing the various domain and boundary conditions available for wave electromagnetics simulation in the frequency domain; as well as modeling, meshing, and solving options. In this blog post, I will tie all of this information together and provide an introduction to the various types of problems that you can solve in the RF and Wave Optics modules.
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