Optical materials: dispersive, absorbent and non-homogeneous; interface between layers.

Mixed material with fixed or variable report.

Optical constants of materials can vary with temperature.

Any number of materials which allow to have one material for each layer.

Linked materials between layers from roots and layers from tree, very useful for optical monitoring.

Number of layers is not restricted.

Edit macro: optical coating can be generated with formula (structure), each formula have it's own wavelength. Number of formula is not restricted. Formula can contain comment or can become comment.

Number of optical coatings is not restricted. The coatings have an arborescent-dinamic structure (similar to beta-tree).

Equivalent index - it's possible to calculate the equivalent index of any formula (inclusive (HL)^n) and to find a symmetrical three layers with imposed index and phase-thickness.