1Click Run button in the Simulate 3D Using 64bit Simulator dialog box. 64bit simulation will start.

Note: non-uniform mesh does not support 32bit simulation.

2After the simulation, open the results in OptiFDTD analyzer.
3Select Observation Area Analysis under Tools menu of OptiFDTD analyzer. Observation area analysis dialog box appears.
4Select Observation Area tab, then Click Power Spectrum button. Power Spectrum dialog box appears.
5Select Normalize with InputPlane1, and select total power Pz.
6Click Calculate, Power transmission spectrum appears (refer to Figure 3)

FDTD - Figure 3 Power transmission spectrum

Figure 3: Power transmission spectrum