High performance optical coatings

High-end optical coatings in the spectral range from UV to near infrared for demanding products with reasonable delivery times and reliable service - that's optical coating made by asphericon. Equipped with state-of-the-art manufacturing and measuring technologies available on the market as well as an experienced team of technicians, we turn your ideas into reality.

Reflection-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.
 

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Single Layer Coating (ARES)

Broadband Coating (ARBB)

Double Layer Coating (ARDS)

Super Broadband Coating (ARSBB)

Multiple Coatings (ARDD)

Absorption-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.

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

Metallic 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.

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Silver mirror (AGM)

Aluminium mirror
(ALM)

Gold mirror (AUM)

High-Reflection Aluminium Mirror (ALENHM)

For 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.

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Short-pass Filter (KPF)

Long-pass Filter (LPF)

Coatings for beam splitters divide incoming light into a transmitted and a reflected part. Based on thermally very stable dielectric layers, we realize customer-specific desired splitting ratios, typically 50 % / 50 % (R/T) or 30 % / 70 % (R/T).

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Beam Splitter (BS)

Looking for a customized coating?

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Coating technologies

Depending on individual properties of the material and the requirements of the optical system, we select the appropriate coating technology for your project. For this purpose electron beam evaporation, ion beam assisted deposition or sputtering can be used.

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+49 (0) 3641 3100 560
sales@asphericon.com