High LIDT large aperture dispersive optics

Ultrafast Innovations GmbH is newly equipped with the HELIOS 800 Gen II magnetron sputtering coating plant of Bühler Leybold Optics. The newest addition has allowed to expand our portfolio and enables production of large aperture optics. We are currently able to produce up to 200 mm diameter optical components including beam splitters, filters, ultra-highly reflective and dispersive mirrors. In addition to the availability of the large aperture optics, we are providing optical coatings with high damage thresholds. Our current damage threshold record for a high reflecting mirror at 1064 nm, 100 Hz stands at 90 J/cm2 as tested by our partner - Laser Zentrum Hannover (LZH).

Large aperture optics

Key Product Features:

  • Aperture: up to 200 mm diameter
  • Reflectance: > 99.99% per bounce
  • Laser Induced Damage Threshold (LIDT): up to 90 J/cm² at 1064 nm, 100 Hz, 10 ns pulses
  • Types of optics: mirrors, beam splitters, thin film polarizers, filters etc.
  • Custom substrate shapes and sizes on request


  • [1] V. Pervak et al., “High damage threshold coating with RF magnetron sputtering,” Laser Damage Symposium 2020 (submitted).

Please contact us for further information and references.