Spectrally resolved white-light phase-shifting interference microscopy for thickness-profile measurements of
Optics Express
|June 12, 2009
Abstract:
We describe how spectrally-resolved white-light phase-shifting interference microscopy with a windowed 8-step algorithm can be used for rapid and accurate measurements of the thickness profile of transparent thin film layers with a wide range of thicknesses deposited upon patterned structures exhibiting steps and discontinuities. An advantage of this technique is that it can be implemented with readily available hardware.


