Anti-Reflective (AR) Coatings
These coatings are all dielectric, single or multi-layers, and are designed for low reflectance and high transmittance in the UV, visible, and near IR spectral bands. AR coatings meet the requirements of MIL-C-675C, MIL-C-14806A, and MIL-C-48497A. AR Coatings are often crucial components in optical systems with multiple lenses or other optics where the maximum possible light energy is needed. AR coatings help to produce brighter images while reducing the intensity of ghost images which may otherwise be produced in optical systems having multiple reflecting surfaces.
Features
- High transmission
- Low reflectance
- Operating temperature of ≥ 300°C (typical)
- Durable and easy-to-clean
Specifications
Group 1 Coatings
The first group is made up of AR coatings that target one or more broad wavelength bands. Our BARC coatings are examples of this group.
BBAR BARC-5
This high efficiency broadband anti-reflective coating reflects less than 0.5% average from 425-675nm. Higher performance specifications are also available. Standard & custom coatings are available for refractive indices of 1.46-1.90.
BBAR BARC-11
This broadband coating provides a low level of reflectance across a wide spectrum from 400-1100nm, reflecting less than 1.0% average. Standard and custom coatings are available for refractive indices of 1.46 to 1.90.
UV BBAR
This broadband AR coating is particularly designed for the ultra-violet region. It provides a low level of reflectance less than 0.5% average from 275-425nm. Standard & custom coatings are available for refractive indices of 1.46-1.90.
BBAR Optimized for Telecommunications
This broadband AR coating is particularly designed for telecommunication applications. It provides a low level of reflectance to less than 0.25% average from 1450-1650nm. Standard & custom coatings are available for refractive indices of 1.46-1.90.
Group 2 Coatings
Narrow Band AR (nominally centered @1550 nm)
This narrow band AR is an excellent coating for targeting a single wavelength or very narrow band of wavelengths at or near 1550nm. Standard < 0.25% and high performance < 0.05% reflectivity specifications are available.
Narrow Band AR (nominally centered @632.8 nm)
This narrow band AR is an excellent coating for targeting a single wavelength or very narrow band of wavelengths. Standard < 0.25% and high performance < 0.05% reflectivity specifications are available.
IR-BBAR 3-5 Microns
This AR coating provides a low level of reflectance for the mid-infrared spectrum (3000nm to 5000nm). Band averaged reflectance is less than 1.0% at normal incidence.
IR-BBAR 8-12 Microns
This AR coating provides a low level of reflectance for the far-infrared spectrum (8µm to 12µm). Band averaged reflectance is less than 1.0% at normal incidence.
Custom AR Coatings
Often, our customers need a custom AR coating that is tailored to meet their specific requirements. The ZC&R Coatings for Optics division of Abrisa Technologies has developed thousands of AR coatings to fulfill such needs. If you have a custom AR requirement just let us know, and we will be happy to submit a design curve for your review.