Our gratings are made in fused silica, which basically is very pure glass. This is a good material to make gratings in because it is extremely stable – it can withstand great temperature ranges, humidity, and high power levels, e.g. laser light.
Our gratings are also very efficient, i.e. they direct the light where it is supposed to go and nowhere else.
We also make gratings more precisely than anybody else can – to 1 part in 100,000. If you magnified our gratings to the size of a football (soccer) field (100 m), the precision of our grating lines would correspond to a thin blade of grass (1 mm.)
With our precise gratings, we can make precise spectrometer modules. We can actually measure a color (wavelength) change to one part in a million. We can furthermore do this very quickly, so some of our spectrometers are used to measure vibration, where we basically allow light to “shake” together with the vibrating object and then measure this shaking light very precisely.
Our optical modules are also very compact. This is partly because we are very good at designing optical modules, but also because our gratings split up the colors of the light more than raindrops, and also more than other grating technologies are able to.