©1990-2002 J.Paul Robinson, Purdue University BMS 631 – LECTURE006.PPT
Interference in Thin Films
•Small amounts of incident light are reflected at the interface between
two material of different RI
•Thickness of the material will alter the constructive or destructive interference patterns - increasing or decreasing certain wavelengths
•Optical filters can thus be created that “interfere”
with the normal transmission of
light
3rd Ed. Shapiro p 82