The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Former study shows that the graphene-embedded modulator can only work in TE mode while cannot achieve enough extinction ratio in TM mode. However, an optical modulator which can work in both TE mode and TM mode is required by the mode multiplexing technology. By simply growing a graphene-aluminum oxide metamaterial layer on the silicon waveguide, an optical-absorption modulator which can achieve a...
The near field coupling effect between a metallic nanostructure and a superlens has been studied numerically. It is found that the coupling effect is significant and the field distribution is altered substantially by it. This effect has a wide range of potential applications, for example using this effect in plasmonic nanostructures we can design devices with novel functionalities, such as a nanoatenna-superlens...
We demonstrate near field enhancement generation in a silver nanoantenna-superlens system. Using near-field coupling effect and genetic algorithm for optimization we can design a nanoantenna-superlens system with mismatched permittivities for sensing applications.
Accurate material modeling is an important factor in simulation of dispersive materials. We present different dispersive models for the simulation of dispersive materials, and can be used from microwave to optical frequencies depending on the nature of application. Most of available dispersive models are in frequency domain, to make them consistent with time domain methods; different approaches are...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.