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UV, VIS, NIR Anti-Reflective: V-Coat Coatings

Engineered for precision, these AR coatings minimize reflectivity at laser wavelengths, enduring power densities up to 1GW/cm2 pulses at 1.064µm / 1.53µm, offering versatility across wavelengths (0.35µm to 2µm) and angles of incidence, meeting rigorous MIL-M-13508C, MIL-C-675A, and MIL-C-14806A standards for optimal optical performance and resilience.

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Product description

Our V-Coat Anti-Reflection Coatings boast minimal absorption and scatter losses, ensuring that your optical systems deliver the utmost efficiency and accuracy. Crafted to endure power densities of up to 1GW/cm2 pulses at wavelengths of 1.064µm/1.53µm when applied on suitably prepared substrates, these coatings are the epitome of resilience and high performance.

With the ability to be optimized for any wavelength between 0.35µm and 2µm and for various angles of incidence, our V-Coat Anti-Reflective Coatings are as versatile as they are effective. They are compatible with substrates boasting a refractive index between 1.47 and 1.85, allowing for a wide range of applications.

The V-Coat Anti-Reflection Coatings are characterized by a specular reflectance of less than 0.5% at the design wavelength at a 0-10° angle of incidence. This offers users an unparalleled level of clarity and precision in their optical applications.

In line with our stringent standards of quality and performance, our V-Coat Anti-Reflective Coatings satisfy the environmental conditions of several military specifications including MIL-M-13508C para 4.4.6., MIL-C-675A, MIL-C-675A para 4.6.8., and MIL-C-14806A. This ensures that our products not only deliver optimal optical performance, but also withstand the harshest of environmental conditions.

Key Metrology

  • UV, VIS, and IR spectrometers
  • 4 point conductivity probe
  • MIL standard temperature and humidity chambers

Key Equipment & Processes

  • Thin-film design including bespoke HUD design software
  • PVD, CVD, and IBS coating platforms
  • Laser test to MILT-DTL-62422
  • TS1888 DLC test bench

Key features

  • Power densities of up to 1GW/cm2 pulses at wavelengths of 1.064µm/1.53µm
  • Optimized for any wavelength between 0.35µm and 2µm
  • Refractive index between 1.47 and 1.85
  • Specular reflectance of less than 0.5% at the design wavelength at a 0-10° angle of incidence
  • MIL-M-13508C para 4.4.6., MIL-C-675A, MIL-C-675A para 4.6.8., and MIL-C-14806A
  • Manufacturing in the UK and US

Specifications

  • Exhibits very low absorption and scatter losses
  • When applied to suitably prepared substrates can withstand power densities up to typically 1GW/cm2 pulses at 1.064µm/1.53µm.
  • Can be optimized for any wavelengths from 0.35µm to 2µm and various angles of incidence
  • Suitable for substrates of refractive index 1.47 to 1.85
  • Exhibits specular reflectance at 0-10° angle of incidence of <0.5%at the design wavelength

Substrates

  • Clear optical glass
  • Filter glass
  • Ceramic glass
  • Sapphire
  • Polycarbonate (including dip-coated visors)
  • Nickel-plated Aluminium
  • Nickel-plated Beryllium
  • Active Devices

Conformance

  • MIL-M-13508C para 4.4.6
  • MIL-C-675A
  • MIL-C-675A para 4.6.8
  • MIL-C-14806A

  • Reflectance Curve for Single Surface N-BK7 (n=1.52)

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