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Optical Coatings

1.Anti-Reflectivity Coatings

These multi layer anti-reflective coatings are designed to reduce the reflectivity of a component to near-zero for one very specific wavelength. Therefore valuable laser energy is efficiently transferred through complex optical systems rather than being lost to glare and scatter. Our anti-reflective (AR) coatings are intended for use at normal incidence, and when used in this way will achieve maximum efficiency transmission.


 


2.High Reflectivity Coatings

Multilayer dielectric high reflectivity (HR) coatings are stacks intended to achieve the highest possible reflectivity at specific laser line wavelengths when AOI = 0° or 45°. We offer HR laser line coatings from 226 nm to 2100 nm.

Laser line high reflectivity coatings are intended for external beam manipulation applications where even slight losses may be intolerable.

3.Metallic Coatings

Protected metallic coatings provide a moderate level of reflection over a very broad spectral range and are widely used as mirrors. These coatings are protected by a thin layer of dielectric material in order to make them durable. Enhanced metallic coatings provide greater reflection across the operating band width. These coatings are enhanced by adding a multilayer dielectric stack. Metal coatings will modify the state of polarization of an incident beam of light and are therefore inappropriate for most polarization sensitive applications.

4.Polarization Beamsplitter Coating

Polarizing Cube Beamsplitter coatings are deposited between two right angle prisms that are permanently cemented together. They are designed to separate an incident, unpolarized, monochromatic beam into its S and P polarization components with an extinction ratio (Tp/Ts) in excess of 1000:1.

The incident energy is split into two orthogonally polarized beams that emerge at 90° with respect to each other.

These coatings are also useful for combining two orthogonally polarized beams.




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