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Kvantovaya Elektronika, 1991, Volume 18, Number 7, Pages 886–890 (Mi qe3955)  

This article is cited in 2 scientific papers (total in 2 papers)

Laser applications and other topics in quantum electronics

Screw dislocations of laser speckle fields in interferograms with a circular line structure

B. D. Bobrov
Abstract: Experimental results are used to show that circular interferograms are of interest in studies of screw dislocations of speckle-distorted laser beams because of a close correspondence between the symmetry of these interferograms and defects. The presence of dislocations transforms a system of the usual rings into a split network. Typical structure elements of such interferograms are right- and left-handed spirals connecting singular points of dislocations. Spiral fragments can be used in the diagnostics of dislocations regarded as independent defects. A method is suggested for the formation of highly directed optical beams with a low level of the usual aberrations, but with a complex phase surface topology. Screw dislocations are shown to be a natural analog of helical waves known in optics and capable of deliberate generation.
Received: 25.05.1990
Revised: 17.12.1990
English version:
Soviet Journal of Quantum Electronics, 1991, Volume 21, Issue 7, Pages 802–806
DOI: https://doi.org/10.1070/QE1991v021n07ABEH003955
Bibliographic databases:
Document Type: Article
UDC: 621.373.826
PACS: 07.60.Ly, 42.30.Ms, 42.55.Lt, 42.60.Jf
Language: Russian


Citation: B. D. Bobrov, “Screw dislocations of laser speckle fields in interferograms with a circular line structure”, Kvantovaya Elektronika, 18:7 (1991), 886–890 [Sov J Quantum Electron, 21:7 (1991), 802–806]
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  • https://www.mathnet.ru/eng/qe3955
  • https://www.mathnet.ru/eng/qe/v18/i7/p886
  • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Квантовая электроника Quantum Electronics
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