Arago spot

Arago spot

C022/0628

Rights Managed

Caption

Arago spot. Diffraction pattern for diffraction on a steel ball, 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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