Excerpt from Laser Far-Field Beam-Profile Measurements by the Focal Plane TechniqueGiven the complex amplitude distribution of the field across a plane near the source, one can, in principle, compute the far-field distribution from diffraction theory. The relationship, as shown in a later section, is essentially that of a Fourier transform.'About the PublisherForgotten
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Laser Far-Field Beam-Profile Measurements by the Focal Plane Technique (Classic Reprint)
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