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Fused Silica

Fused Silica – Synthetic quartz for precision optics. Mirrors, lenses, windows.

Very low absorption values

Maximum reflection

Own development department

Material Fused Silica

High purity material for optical applications from UV to IR.

  • UV Fused Silica
  • IR Fused Silica
  • Natural Quartz

Lenses / Windows / Filters

Lenses, filters and windows made of high purity material from UV to IR.

  • Lenses for high-power lasers
  • Protective windows
  • Filters for gas analysis

UV Quartz

  • Suprasil 311, Suprasil 312 (Heraeus)
  • 7979, 7980, 8655 (Ohara)

IR Quartz

  • Infrasil 301, 302 (Heraeus)
  • Suprasil  3301, 3302 (Heraeus)
  • 7979, 7980, 8655 (Ohara)
Beschichtung Glaspolygon
N-BK7 - Borosilikatglas



With an optical coating optics are optimized for your application.

Gold with protection
A gold with protective coating is ideal for all applications in the indrared range. Including a pritective oxide coating, the optics can be easily cleaned and prevents damage to the surface. This coating provides a reflection of R(avg) > 98 % in the IR from 1 - 20 µm.

Silver with protection
Silver with protection coated mirrors provide the highest reflectance of any metal from the visible to infrared spectral range. Including a protective oxide layer for easy cleaning and protection from oxidation, they are ideal for all broadband applications. Despite the protective coating, we recommend use in low humidity conditions to prevent tarnishing.

Aluminum with protection
A coating of aluminum with protection provides sufficient reflection for many optical systems. Including a protective oxide layer, it can be easily cleaned and it is protected from oxidation. Aluminum with protection provides a reflectance of R(avg) > 91% in the visible/NIR range of 0.4 - 2.0 µm and R(avg) > 94% in the range of 2- 20 µm.

Anti-reflective coatings
Uncoated N-BK7 lenses and windows reflect 4% of visible light on each side. Including an anti-reflective coating on both sides significantly increases performance and minimizes unwanted ghosting. AR coating we manufacture broadband or for one laser wavelength on request. Please contact us.

Rhodium / Platinum / Chrome
Rhodium or platinum coatings are used when extreme oxidation resistance is required. For example, most dental mirrors are rhodium coated. Both metals are also used as barrier coatings to prevent intermetallic diffusion. Chromium coatings are used as metallic neutral density filters as well as for the manufacture of calibration discs.

Do you need
Gold or silver mirror?

Here you can find our overview of optical mirrors

Do you need more information about optics or components?

Please feel free to contact us!