Wavefront sensors: the ultimate optical diagnostic tool?

Characterizing a laser beam is a growing concern in the industry. A great number of instruments are available on the market, each with their specialities. Continue reading

Peak-to-valley Vs RMS

What is an optic surface figure?

The surface figure, or surface quality or surface cosmetics all refer to the deviation between an actual optic and its ideal surface. There are basically two set of information that are commonly given by manufacturers: the surface flatness and what is referred to as “scratch-dig”. Continue reading