Electric field profiles correspond to light wavelengths of 646 and 658 nm for semi-ellipsoid- and parallelepiped-shaped Au nanoparticles, respectively, which provide the maximal intensity enhancement.
A field profile was modeled by investigating range data.
Figure 3: Zoomed-in computed photonic band diagram and the electric field profiles of the modes.
The reason for the different S- and P-polarized coupling can be understood by investigating the electric field profile of the modes with respect to the field profile of the source.
The electric field profiles of all observed modes, determined by 3D FDTD simulations, are depicted in Fig. 2d.
Reasons which affect the field profile and reduce homogeneity at high field are discussed.
However, measurements on physical transducers reveal differences from the idealized field profiles predicted by simulation.
Coupling process is verified by the field profiles of the SPP modes calculated by FDTD method.
Through TCAD simulations, the lateral electric field profile and related breakdown voltage behaviour are studied.
