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


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.


Power Density Gaussian Beam Beam Axis Wire Diameter Beam Radius 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    B. S. Rinkevicius, in: Laser Flow Diagnosis, V. A. Fabrikant (ed.) [in Russian], Izd. MEI, Moscow (1990).Google Scholar
  2. 2.
    K. I. Krylov, V. T. Prokopenko, and A. S. Mitrofanov, Applications of Lasers in Engineering and Instrumentation [in Russian], Mashinostroenie, Leningrad (1978).Google Scholar
  3. 3.
    D. Lebrun and S. Belain, Optical Engineering,35, No. 4, 946 (1996).CrossRefADSGoogle Scholar
  4. 4.
    Yu. M. Klimkov, Design Principles for Optoelectronic Instruments, Containing Lasers [in Russian], Sov. Radio, Moscow (1978).Google Scholar
  5. 5.
    V. A. Grechikhin et al., Optical Methods and Data Proceessing in Heat and Fluid Flow, Mechanical Engineering Publ., London (1996), p. 393.Google Scholar
  6. 6.
    M. Born and E. Wolf, Principles of Optics [Russian translation], Mir, Moscow (1970).MATHGoogle Scholar

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

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

There are no affiliations available

Personalised recommendations