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Michelson interferometer built with easy access material

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posted on 2019-06-19, 02:42 authored by L. G. Souza, L. R. Santiago, V. L. B. de Jesus

Abstract This work presents a possibility to carry out an interferometer, similar to the one used in the famous Michelson and Morley experiment, using easy access materials and at a much lower cost than the didactic experiments available in the market. The main challenge of this article is to move one of the mirrors by a few millimeters, which is possible using a home-made system similar to a lever. Alignment is another major challenge in this article. Here an alternative device is presented which enables the beam alignment with enough precision to measure the laser wavelength within 4% relative error.

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    Revista Brasileira de Ensino de Física

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