Terminology

LC specific references are explained here.

• The terms ``probe'' and ``source'' refer exclusively to LC blocks of the same name.
• The boundary conditions used here are PML (perfectly matched layers), an absorbing boundary condition known for its extremely low reflection when absorbing incoming plane waves. Waves that are traveling along the boundary, not into it, and non-homogenous material grids reduce the efficiency of the PML boundaries.
• The selection of an LC command appears in the form main command||subcommand, where main command is the menu button on the main menu, and subcommand is selected from the drop down menu that appears as a result of selecting main command.