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Anti-Reflective (AR) Coatings

These Anti-Reflective (AR) 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.

Semi-Transparent Mirror Coatings

Anti-Reflective (AR) Coating Features

  • High transmission
  • Low reflectance
  • Operating temperature of ≥ 300°C (typical)
  • Durable and easy-to-clean

Anti-Reflective (AR) Coating Specifications

Substrates
Soda lime float
Substrates
Borofloat® – Borosilicate
Substrates
Water white float glass
Substrates
Polished and drawn technical glass materials such as BK7, fused silica, and Eagle XG®
Substrates
IR materials such as silicon, zinc selenide, and germanium
Substrates
Crystalline materials such as CaFz and crystal quartz
Thicknesses
Range from 0.1mm to over 25.4mm and thicker
Reflectance
As low as 0.05% depending upon wavelengths covered
Transmittance
Typically very high. Contact us for specific values for each substrate material

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 Broadband Anti-Reflective (AR) Coating

This high efficiency broadband anti-reflective (AR) 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-5 Graph

BBAR BARC-11 Broadband Anti-Reflective (AR) Coating

This broadband anti-reflective (AR) 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.

BBAR BARC-11 Graph

UV BBAR Broadband Anti-Reflective (AR) Coating

This broadband anti-reflective (AR) coating is particularly designed for the ultra-violet (UV) 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.

UV BBAR Graph

BBAR Broadband Anti-Reflective (AR) Coating Optimized for Telecommunications

This broadband anti-reflective (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.

BBAR for Telecommunications Graph

Group 2 Coatings

Narrow Band Anti-Reflective (AR) Coating (nominally centered @1550 nm)

This narrow band anti-reflective (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 @1550 nm) Graph

Narrow Band Anti-Reflective (AR) Coating (nominally centered @632.8 nm)

This narrow band anti-reflective (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.

Narrow Band AE (nominally centered @632.8 nm) Graph

MWIR-BBAR Anti-Reflective (AR) Coating 3-5 Microns

This Mid Wave Infrared (MWIR) Anti-Reflective (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 3-5 Microns Graph

LWIR-BBAR Anti-Reflective (AR) Coating 8-12 Microns

This Long Wave Infrared (LWIR) Anti-Reflective (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.

IR-BBAR 8-12 Microns Graph

Custom Anti-Reflective (AR) Coatings

Often, our customers need a custom Anti-Reflective (AR) coating that is tailored to meet their specific requirements. The ZC&R Coatings for Optics division of Abrisa Technologies has developed thousands of Anti-Reflective (AR) coatings to fulfill such needs. If you have a custom Anti-Reflective (AR) requirement just let us know, and we will be happy to submit a design curve for your review.

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