Measurement Techniques

, Volume 40, Issue 11, pp 1069–1073 | Cite as

Effects of gaussian beam size on diffraction measurement errors

  • N. M. Gagina
  • B. S. Rinkevicius
Opticophysical Measurements

Abstract

A numerical simulation has been performed for the diffraction of a gaussian beam at a wire in the Fraunhofer approximation. The wire is symmetrically disposed with respect to the beam axis in the calculations on the shifts in the diffraction minima, while an unsymmetrical position has been used in calculating the diffraction pattern, which is characterized by change in the minima and maxima. Conditions are evaluated under which one can use the homogeneous-beam approximation in diffraction measurements.

Keywords

Power Density Gaussian Beam Beam Axis Wire Diameter Beam Radius 

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Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • N. M. Gagina
  • B. S. Rinkevicius

There are no affiliations available

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