Abstract

Measurements of beams of ~1 μm in diameter are presented. Three approaches, one using a Ronchi ruling, the other two based on knife-edge scan techniques are compared experimentally. Effects of Ronchi ruling accuracy and nonconstant scan velocity are discussed. Included are results of theoretical studies on the effect of imperfect scanning edges and non-Gaussian beam profiles on measurement results.

© 1986 Optical Society of America

Techniques for measuring 1-μm diam Gaussian beams

Donald K. Cohen, Blake Little, and Frank S. Luecke
Appl. Opt. 23(4) 637-640 (1984)

Techniques for measuring 1-μm diam Gaussian beams: comment

Rita Csomor
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Measurement of a Gaussian laser beam spot size using a boundary diffraction wave

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Generalization of the Ronchi, sinusoidal, and triangular rulings for Gaussian-laser-beam-diameter measurements

A. K. Cherri, A. A. S. Awwal, and M. A. Karim
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Ronchi ruling characterization of axially symmetric laser beams

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