Direct determination of the number of transverse modes of a light beam.

  • Karny Z
  • Lavi S
  • Kafri O
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Abstract

A method based on moiré deflectometry for direct determination of the number of transverse modes of radiation of a light beam is presented. An expression for the number of transverse modes of a light beam, as a function of the beam divergence, is derived. We demonstrate the method for a Cu-vapor laser-beam analysis.

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Authors

  • Z Karny

  • S Lavi

  • O Kafri

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