Parametric characterization of coherent, lowest-order Gaussian beams propagating through hard-edged apertures.
Analytical expressions for the width, far-field divergence, crossed moment, and generalized beam-quality parameter of a coherent, lowest-order Gaussian beam propagating through hard-edged slits are given in terms of the size of the opening and of the position of the aperture plane with respect to the beam waist. Some optimization criteria of these beam-shape parameters are also inferred.
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Martínez-Herrero
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Mejías
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Arias