FETD Engine | OmniSim | Photon Design

Finite element time domain (FETD) simulations are an alternative to the popular finite difference time domain (FDTD) method. Incorporating innovative proprietary techniques, Photon Design presents an efficient, fully-functional FETD calculation engine, which complements our state-of-the-art FDTD engine for simulations of photonic devices.  

The FETD engine is designed to address some of the specific shortcomings of FDTD, in particular when modelling plasmonics and metamaterials: FDTD can be very slow when dealing with metallic structures and plasmonic devices. In these areas, the FETD engine delivers major steps forward in terms of capability and efficiency. Our FETD engine is also much faster than finite element frequency domain (FEFD) methods for all but the smallest structures.

FETD is also ideal for modelling graphene-based devices or other 2D materials; it can deal with such structures extremely efficiently using a native surface material model.

With this new addition to OmniSim and CrystalWave, Photon Design offers the world’s first integrated FDTD and FETD simulation suite. You can now choose the most efficient calculation method for your structure, and you can also model your design with two independent engines – ideal to check the accuracy of your simulations!