Customer Cases

Filling of diffractive gratings

Man with mask

The challenge

The customer was looking for ways to adjust the optical performance of their diffractive gratings and to keep the gratings free from debris.

The customer

A leading optical system manufacturer.

Beneq solution

Beneq used ALD to fill the grating structure completely with a high refractive index material to boost the optical performance of the grating. The complete resulting structure is essentially flat, which helps keep the structure clean.

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