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Direct measurement of the central fringe velocity in Young-type experiments

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
295
Identifiers
DOI: 10.1016/s0375-9601(02)00163-9
Keywords
  • Young'S Interferometer
  • Superluminal Velocity
  • Bessel Beam

Abstract

Abstract We show that in the Young's two-slit experiment, the velocity of fringes on the axis of propagation is superluminal. This velocity is directly measured with a slightly modified Young set-up. The differential measurement method is generalized to the case of the Arago–Fresnel–Poisson spot in optics.

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