Fizeau fringes at home

摘要

We propose an easy and inexpensive laboratory experiment to obtain equal-thickness optical interference using a flatbed scanner and a personal computer to produce Fizeau fringes. Valuable discussions about multiple-beam interference, Fresnel equations, the theory of partial coherence, and colorimetry arise naturally from the interference-fringe results. (C) 2002 American Association of Physics Teachers. [References: 7]