8.7     Fields Monitor

The  button in Simulation tab and Postprocessings->Fields Monitor... command from main menu invoke Fields Monitor dialogue with settings for Fields Monitor post-processing.

FD-Monitors post-processing performs Fourier-transformation of the field components checked in the upper line in the dialogue, at frequencies specified in the lower line, in selected sections of the circuit called Fields Monitor. In QW-Simulator, magnitudes of these field components as well as real and imaginary parts of the Poynting vector (if available from the checked components) are accessible in Fields Monitor window. FD-Monitors post-processing is available only if at least one Fields Monitor has been set. Theoretically, any number of Fields Monitors and frequencies can be considered. However, collecting the data for many frequencies and Fields Monitors may become quite consuming in terms of computer resources. For that reason, data collection can be accelerated by setting a Sparsity factor in space higher than 1. Sparsity factor can be set separately for each direction. Please note that for the sparsity N greater than 1, the following components: Etotal, Htotal, S, Sx, Sy, Sz, PdE, PdH, Pd and pd values will be calculated not from the nearest cell but will be estimated from the nearest N-th cell.

Each Fields Monitor has its own Components, Frequencies, and Sparsity parameters set in Add Fields Monitor/Edit Fields Monitor window. Those individual parameters can be overwritten with values set in Fields Monitor post-processing window by checking appropriate Apply for option: 3D FD-Monitors or 2D FD-Monitors.

Detailed discussion regarding the FD-Monitors post-processing and its simulation results is given in Field’s Monitoring.