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Diffraction on round aperture

Diffraction on round aperture

C022/0629

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Credit

GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY

Caption

Diffraction pattern for diffraction on a round aperture, as could be obtained with a purple laser. Note the bright spot, called Arago or Poisson spot, at the centre of the geometric shadow. Historically, observation of Arago spot was used as an evidence for the wave theory of light. Digital composite.

Release details

Model release not required. Property release not required.

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