HOD? fused silica diffusor

New synthetic opaque fused silica for your optical applications.

Diffuser material HOD?

Heraeus has developed a new opaque material, HOD?, which is a synthetic fused silica diffuser. This material can be used as a diffuser for several optical and industrial applications and is being used in space applications.

Compared to other modern diffuser materials, HOD? offers advantages that we have compiled below.

If you need to model HOD? performance using a ray tracing software, you can use the Gegenbauer parameters provided in the datasheet (see downloads below). The simpler Henyey-Greenstein-model can be applied as well and yield good results for all but the largest viewing angles. To employ it, please use an anisotropy factor of g=0.79564.

Feel free to contact our experts for additional information.

HOD? can be used in several applications and provides smart answers to all your challenges. Benefit from a wide range of benefits:

  • excellent diffuse reflection and transmission with all the advantages of transparent fused silica
  • broad and diffuse reflection from UV to IR (with the exception of OH-absorption bands)
  • highly chemically inert, that means HOD? can also be used in the harshest environments
  • machinable
  • easy and quick cleaning with e.g. standard ultra sonic processes (no open porosity)

Furthermore, HOD? can be made highly resistant to UV radiation, thanks to a special process step developed by Heraeus.

HOD? is suitable for several applications. Please find below some examples:

  • in photometry, for example, to make a detector more sensitive in covering a large spatial angle
  • for the deliberate diffusion of strong light sources (such as lasers) to measure power
  • for the homogenization of point light sources (such as LEDs)
  • as cladding for integrating spheres in optical measuring technology
  • for calibration of spectrometers
  • as white balance in photography

The new material is already being used in space applications for remote sensing in satellites.