Beam Splitter coatings are used for separating transmission and reflection over different wavelength bands or to produce a specific reflectance and transmission at a wavelength or a wavelength band. Denton Vacuum makes both types of beam splitters. Cold mirrors and hot mirrors are an example of beam splitters that separate reflection and transmission at the upper end of the visible spectrum. The wavelength at which the reflection and transmission are separated can be adjusted to any value.

Denton Vacuum specializes in making moisture stable beam splitters that result in splitting reflection/transmission values at specific wavelengths. These are made to requested customer specification. The following plots show examples of beam splitters that have been made in the past. Contact Denton Vacuum Coating Department with your specific requirements.

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