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Optical Coating

Thin films in asphericon quality

Optical coatingHigh-end optical coatings for each application – in outstanding quality, with reasonable delivery times and the reliable asphericon service. Equipped with state-of-the-art manufacturing and measuring technologies, our experienced team of technicians can turn your coatings ideas into reality.

  • Spectral range
Production of coatings in the spectral range from UV (190 nm) to the near infrared range (3 µm)
  • Technology
Modern coating plants with plasma support, modern measuring and test technologies (Perkin Elmer Lambda 950, Zeiss MCS 600)
  • Fast lane
On request, high-quality coatings in 24 to 48 hours
  • Substrate
Lenses, glass surfaces, prisms, wafers, integrators, fibers
  • Diameter
Up to 260 mm

ar-coating

AR-layersReflection-minimizing coatings, also referred to as anti-reflection coatings, are essential for maximum transmission of the lens. Depending on the desired application, we offer single layer coatings, broadband coatings and reflection-minimizing coatings specific for laser applications. It is possible to minimize the reflection to <0.1%, depending on the glass type.

 

Single Layer Coating (ARES)

Single Layer Coating (ARES)
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Double Layer Coating (ARDS)

Double Layer Coating (ARDS)
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Broadband Coating (ARBB)

Broadband Coating (ARBB)
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Super Broadband Coating (ARSBB)

Super Broadband Coating (ARSBB)
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Double and Multiple Coatings (ARDD)

Double and Multiple Coatings (ARDD)
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Dielectric mirrors

dielectric mirrorsAbsorption-free, stress-minimized mirrors optimized for various angles of incidence with reflections greater than 99% can be produced for various wavelength ranges with dielectric coatings.

Mirrors can be specialized for single wavelengths (Single High Reflection, or SHR), two wavelengths (Double High Reflection, or DHR) and over a broad spectral range (Broadband High Reflection, or BBHR). Our high-power coatings are optimized for high-performance laser applications.

 

Single High Reflection (SHR)/Broadband High Reflection (BBHR)

Single High Reflection (SHR)/Broadband High Reflection (BBHR)
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Metallic mirrors

metallic mirrorsMetallic mirrors provide a constant level of reflection across a very wide wavelength range. The surfaces are based on metals (e.g. Al, Ag or Au). Metallic mirrors can be protected and their reflectivity enhanced by adding dielectric coatings.

 

Silver mirror (AGM)

Silver mirror (AGM)
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Gold mirror(AUM)

Gold mirror(AUM)
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Aluminium mirror (ALM)

Aluminium mirror (ALM)
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High-Reflection Aluminium Mirror (ALENHM)

High-Reflection Aluminium Mirror (ALENHM)
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Filter layers

filter layersFor many applications, various wavebands can be separated with filter coatings. We offer short pass and long pass filters based on dielectric coatings.
Short pass filters allow short wavelengths to pass, while long wavelengths are reflected. In contrast, long pass filters transmit the long wavelengths and reflect the short wavelengths.

 

Short-pass Filter (KPF)


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Long-pass Filter (LPF)


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Beam splitter

Strahlteiler_freiThe customer-specific splitting ratio (T/R) is achieved with thermally stable dielectric layers. Coatings for beam splitter divide the incoming light into a transmitted and a reflected part.

 

Beam Splitter (BS)


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