The interaction between light and electronics is central to many devices in common use; these include bar code readers (lasers), infra-red security cameras (photodetectors), solar cells, optical modulators for telecommunications signals, photodiodes, phototransistor, photomultipliers.
Major advantages of spectroscopic ellipsometry for this application are:
- Non-destructive analysis
- Multi layer stack analysis
- NIR measurement capability
- Optical bandgap and determination of optical constants