Defining a Gaussian Beam with Non-normal Incidence : Defining a Gaussian Beam with Non-normal Incidence

Requires: S-Pisces/Luminous
Minimum Versions: Atlas 5.28.1.R

This example demonstrates:

  • How to define an optical source that has a gaussion optical intensity
  • Application of the periodic boundary condition for light sources

The first four sections of the input file are similiar to the corresponding sections in the input file for example described previously.

The fifth section describes the beam properties and follows in general the beam properties of example described previously.

In Atlas, by default, an unspecified boundary condition for device simulation is assumed mirror or periodic. However, for ray tracing by default the edges of the device are considered interfaces with a vacuum, and therefore reflections are calculated along these boundaries. In some cases it is useful to be able to specify the edges to be periodic in regards to ray tracing as well. This is particularly true when the beam is not normal to the plane.

This example runs two simulations; the first with the default boundary conditions for ray tracing, and the second with periodic boundary conditions for the rays. The periodic boundary conditions are chosen by the periodic parameter of the BEAM statement.

To load and run this example, select the Load button in DeckBuild > Examples. This will copy the input file and any support files to your current working directory. Select the Run button in DeckBuild to execute the example.