Figure 2.

Geometry and parameters of the setup used for FDTD simulations: P—period of the array and width of the simulation cell along X and Y directions, H_Z—vertical dimension of the simulation cell, h—height of the polymer nanopost, W—width of the nanopost, t—thickness of the gold film, a—length of nanopost covered by gold, in case of partly covered nanoposts, and b—thickness of the gold film on the sides of the nanopost.