Coating Types

Anti-reflective coatings                                        Catalog Code AR ...

• reduce reflection losses, thereby effectively increasing transmission
• optimized for one or more wavelengths (narrowband/broadband anti-reflective coatings

Metallic mirror coatings                                        Catalog Code R ...

• high reflectances
• broadband

Dielectric mirror coatings                                     Catalog Code DL ...

• highest reflectances of any coating type
• high damage thresholds 
• virtually no absorption losses
• choice of narrow-band to broadband coatings

Beamsplitter coatings                                            Catalog Code T ...

• for splitting beams into two beams having
  specified intensity ratios (transmitted/reflecid beams)

Thin film polarizer coatings                                    Catalog Code DS ...

• extreme polarization of the transmitted beam
• for polarizing beam splitter cubes fabricated from 90° prisms
• economical alternative to crystalline polarizers

In the reflections/transmission curves shown on the following pages α designates angle of incidence.

Remember for all non-metallic coatings:

The diagrams given show the most manufactured types. According to the tabular specifications the coatings can be shifted into a different spectral range.