Simulation of Michelson and Young experiments using moiré fringes
Keywords:
Temporal coherence, spatial coherence, optical interferenceAbstract
The ``visualization'' of classical physics experiments for a classroom demonstration is highly stimulating and encouraging for students in a General Physics course. Optics is unique in this matter because it offers the opportunity to awe the class with fun and beauty. The use of moiré fringes is a motivating, easy way to fulfill these purposes. This paper shows how moiré fringes can be used to simulate wave interference by means of the Michelson and Young experiments. A computer code in Postscript is added to help in tracing a set of concentric circles as an example of spherical wavefronts. The validity of the ``experimental measurements'' are checked with the Young and Michelson theories.Downloads
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