![]() ![]() The well known total field / scattered field approach with our FETD engine to calculate the scattering efficiency this approach allowed us to measure scatteredįield with high precision, even when the scattered energy is much We injected a plane wave with a broadband spectrum and we used Description of the structureīelow the blue disc corresponds to the gold scattererĪnd the rest of the device is filled with air. (right) out-of-plane H field component plotted live during theįETD calculation. (left) mesh of the FETD engine near the metal and Ideal for the modelling of such problems and is able to obtain Large wavelengths, however the accuracy of FDTD calculationsĭeteriorates as the wavelength decreases below 4x the radius. When modelling Mie scattering, both FDTD and FETD provide accurate results for Used the FDTD engine with its Sub-Gridding tool. ![]() The FETDĮngine is an ideal tool for modelling plasmonics, particularly forĭifficult cases involving curved or slanted interfaces.Īs a complement to the FETD calculations, we also Model scattering from a gold cylinder in 2D, and the results wereĬompared with Mie scattering theory. Mie scattering from a gold cylinder Plasmonics simulated with OmniSim's FETD and FDTD software ![]()
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