A simple window is a useful element for isolating areas of high pressure, high temperature or contamination from other areas of a system.

Potassium Chloride (KCl) windows can be used for protecting focus lenses from back-spatter or fumes from industrial cutting. Sapphire windows can withstand enormous temperatures and pressures, as well as aggressive chemical environments.

At non normal incidence Brewster windows introduce polarisation effects useful in laser resonators.

In many situations where the incident light is incident at non normal incidence focus shifts and lateral displacements can be introduced by the window. Please ask for our freeware calculator programme that calculates such displacements.

Additionally multiple internal reflections between the window faces can give spurious effects. We can advise can advise on all aspects and specifications of parts.