Anti Reflective Coatings
Single Layer MgF2 Antireflective Coatings (Part No.: SAR)
Magnesium fluoride is probably the most widely used thin film material for optical coatings. Its performance is not outstanding but represents a significant improvement over an uncoated surface.
|l R 0 <1.5%@540nm
|l R 0 < 2.0%@540nm
Multilayer Antireflective Coatings (Part No.: VAR)
Such antireflective coatings can acieve the lowest reflectivity at a given wavelength. It is often applied for a single laser wavelength from 250nm to 2200nm. When selecting a suitable multilayer antireflective coating, the center wavelength and damage threshold must be paid attention to.
|l R0<0.25%@1064nm||l R0<0.5%@1064nm|
Multilayer Broadband Antireflectance Coatings(Part No.: WAR)
This multilayer Broadband antireflective coating can achieve high transmissions over a broadband spectrum. Therefore, it is the ideal for a wide range of multi-wavelength laser and white light applications. Please note that the reflectivity of the coating is changed according to the incident angle.
Dual Wavelength Band Antireflective Coatings(Part No.: DAR)
This coating allows two central wavelengths to pass through the substrate with high transmission. This coating is often used in frequency doubling systems or the other muti-laser output systems e.g. Nd: YVO4 laser (1064nm) and its second harmonic generation (532nm) green laser.
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