This article explains:

• How dichroic beam splitters can be modeled in non-sequential mode
• How to use the flexible table coating format which is useful when the coating prescription data is not available

Non-sequential objects are 3D volumes. Thin-film coatings, and scattering functions, are surface properties of these 3D volumes. This article explains:

• The concept of the "face number" of an object
• How thin-film coatings and scattering functions are applied to the various faces of an object
• Special issues involved in applying these properties to CAD objects

This article describes how to model a partially reflective surface which diffusely scatters a fraction of incident energy into a specific distribution.

This article describes how to model evanescent field effects like frustrated total internal reflection in ZEMAX. This is useful in applications like fingerprint scanners.