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Glossary

  • Laser: acronym of : « light amplification by stimulated emission of radiation » ; device emitting spatially and temporally coherent light radiation based on the stimulated emission
  • Gaussian beam: beam with a gaussian distribution of intensity in the plane perpendicular to the direction of propagation - fundamental transverse mode of a laser
  • Intensity ( physical optics ): local parameter proportional to the average energy or power of a light wave per unit area
  • Relative intensity: normalized intensity as determined by the ratio between the intensity and its maximum value