Overview coating types
Main types
AR : Anti-Reflection Coating
Minimizes surface reflection of substrates for highest transmission, coated on both sides, used as
– window
or, to minimize back side reflection of beam splitters, used as
– rear side coating
Subtypes for AR-Coatings see here
HR : High Reflection Coating
for highest reflection, used as
– cavity mirror
– full reflector
– bending mirror
also available as
– metallic mirror
Subtypes for HR-Coatings see here
PR : Partial Reflection Coating
for splitting or reducing the incoming light, used as
– partial reflector,
– output coupler,
– attenuator,
– beam splitter,
also available as
– non polarizing beam splitter
Subtypes for PR-coatings see here
Filter : HR/PR + AR Coating
Combination of AR and HR or PR coatings for separating wavelengths, used as
– long / short wave pass
– steep edge filter
– band pass / interference filter
– notch / negative filter
– dichroic filter
– harmonic beam separator
or for combining laser beams, used as
– beam sampler
– combining mirror
– pump mirror
Subtypes for Filter see here
Polarizer
Separates the polarizations, coated on plates for
– thin film polarizer (TFP)
also available for
– cube polarizer
– broadband polarizer
works also as
– polarization sampler
Subtypes of Polarizers see here
For more informations about Polarizer
( Thin Film / Cube / Broadband ) click here
Variables : Variable Attenuator / Gradient Coating
for changing the transmission / reflection ratio with the angle, used as
– variable attenuator
or with the beam position used as
– gradient output coupler
– gradient attenuator
– gradient pass filter
– gradient interference filter
Subtypes for Variables see here
For more informations about
– Variable Attenuators click here
– Gradient Output Couplers and Filters click here
– Reflection Filters click here