In the Lumerical FDTD software, design some unique nanometer-sized (10-'m) object, and designate it to be some metal (i.e., Gold, Silver, etc.). Then create an ARRAY of that object (i.e. 2 x 2,5 x 10, etc.) In the Lumerical FDTD software, design some unique nanometer-sized (10-'m) object, and designate it to be some metal (i.e., Gold, Silver, etc.). Then create an ARRAY of that object (i.e. 2 x 2,5 x 10, etc.)