Electrical | Posted on
May 8th, 2013 by
Daniel Smith
In a paper titled “Choosing a Gate Dielectric for Graphene Based Transistors” the applications of a semiconducting form of graphene are examined. As we have seen before, single-layer graphene is not a semiconductor, it is a zero band gap conductor (a semimetal). Efforts are well underway to introduce band gaps to graphene, which would make it semiconducting with a room temperature mobility an order of magnitude higher than silicon. The race is already underway to find applications for such a material once the remaining technical challenges have been overcome. An application of semiconducting graphene is the design of next-generation, fast switching semiconductor metal oxide field effect transistors (MOSFETs).
Read more on: The Graphene Revolution: Part 5
Electrical | Posted on
May 7th, 2013 by
Bjorn Sjodin
The new COMSOL Multiphysics Wave Optics Module provides engineers with a great set of features for designing their simulations. One of the new capabilities included in this module is the groundbreaking Beam Envelope Method for electromagnetic full-wave propagation. We hope this feature will become instrumental to the optics community.
Read more on: Taking Care of Fast Oscillations with the Wave Optics Module
Tips & Tricks | Posted on
May 6th, 2013 by
Andrew Griesmer
Our newest release, COMSOL Multiphysics version 4.3b, contains so many new modules and features, certain additions might get lost in the fray. One addition to the COMSOL Multiphysics base package we don’t want you to miss is the ability to create 2D models from cross sections of 3D geometries. This easy-to-use feature allows engineers to simplify the model, gain understanding of and fine-tune parameters, and dramatically reduce simulation time.
Read more on: Creating 2D Models from 3D Geometries in COMSOL Multiphysics
News | Posted on
May 3rd, 2013 by
Fanny Littmarck
We’ve been dropping hints for the past few weeks here on the blog, and the time has finally come when we can officially unveil the release of COMSOL Multiphysics 4.3b. Five new products extend our product suite, and there are plenty of new features to enhance your simulation experience. The latest version of COMSOL Multiphysics is here, and you do not want to miss out on the news.
Read more on: This Just In: COMSOL Multiphysics 4.3b
Fluid | Posted on
May 2nd, 2013 by
Daniel Smith
Graphene can be created by way of thermal decomposition at high vacuum. In order to design and optimize these high vacuum systems engineers might look to simulation, but there are currently not many modeling tools that are up to the task. Let’s have a look at how vacuum systems are relevant to graphene production, why you should simulate them, and how.
Read more on: The Graphene Revolution: Part 4
Heat Transfer | Posted on
May 1st, 2013 by
Fanny Littmarck
Given the title of this blog post you might expect it to be about global warming, and I won’t blame you for it; greenhouse effect has become another popular term used when debating climate change. However, its original and literal meaning refers to a very different process, in particular when it comes to heat retention. Here we will describe the effect of heating up an actual greenhouse and suggest steps for optimizing its design.
Read more on: The Greenhouse Effect
Electrical | Posted on
April 30th, 2013 by
Fanny Littmarck
Engineers working with lasers, optical fibers and waveguides, nonlinear optical processes, metamaterials, and other large photonic devices ultimately deal with wave optics. Photonic devices are considered “large” when they are larger than a wavelength of light. In that case, you deal with optics frequencies as opposed to radio frequencies, and the device is not complex enough to justify approximating with rays.
Read more on: Wave Optics, to Approximate or Not?
Electrical | Posted on
April 29th, 2013 by
Bernt Nilsson
The Institute of Electrical and Electronics Engineers (IEEE) is doing some really cool things for its members. Chances are that you have attended their top rated conferences, downloaded papers from IEEE Xplore, or participated in one of many local chapter events. For electrical engineers like me, IEEE certainly is a rock to lean on for continued education and to connect with colleagues from around the world. Even if you are not a member you can tap into IEEE resources such as newsletters, websites, and their flagship publication — IEEE Spectrum. With over 400,000 subscribers and sharp editorial it is with great expectations I pick up the magazine from my mailbox (you can get it as a PDF too) each month.
Read more on: IEEE Spectrum Puts the Spotlight on Multiphysics
News | Posted on
April 26th, 2013 by
Alexandra Foley
Do you have an invention or idea that you think could change the future? NASA Tech Briefs’ Create the Future design contest is a great way to share your idea, receive recognition from your peers around the globe, and win some pretty cool prizes. NASA Tech briefs and we at COMSOL would like to invite you to submit your revolutionary design idea to the Create the Future design contest 2013. The contest spans eight different categories. Winners of the First Prize in each category will receive a Hewlett-Packard workstation computer. The Grand Prize winner is selected from one of the eight main categories and will receive $20,000 to help bring their product or idea to life.
Read more on: Create the Future with Your Design Idea
Events | Posted on
April 25th, 2013 by
Fanny Littmarck
Each year in May we host a multiphysics simulation workshop specifically for U.S. government employees. This year’s agenda will provide attendees with an overview of COMSOL Multiphysics, tutorials, a user presentation, and more — all in a setting that allows classified work to be shared among federal employees and contractors only.
Read more on: 2013 U.S. Government COMSOL Workshop
