Glossary
- Interference: superposition of light waves whose resulting intensity depends on the phase shifts between them
- Anti reflection coating: layer(s) deposited on a substrate in order to minimize the reflection of light on the said substrate
- Refraction index: for a transparent medium, ratio between the light speed in the air and the light speed in the medium ; for a reflective surface in the air or vacuum, the refraction index is « - 1 »