Detection of dislocations as branching points of interference pattern

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the present article the problem of Gaussian beam propagation in the turbulent atmosphere is considered on the base of numeric methods. Singular points (dislocations) development in the wavefront is analyzed. Two algorithms of dislocation detection were proposed. One of them based on the interferogramm processing and can be realized in a laboratory experiment. In the second algorithm the whole wavefront is analyzed and dislocations are localized as points where cutes of the surface in 2π begin. The precision of the algorithms is compared and statistics of dislocations on the path of propagation is represented.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsG.A. Zherebtsov, G.G. Matvienko, V.A. Banakh, V.V. Koshelev
Pages159-163
Number of pages5
Volume4678
DOIs
Publication statusPublished - 2002
EventEight Internationla Symposium on Atmospheric and Ocean Optics: Atmospheric Physics - Irkutsk, Russian Federation
Duration: 25 Jun 200129 Jun 2001

Other

OtherEight Internationla Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
CountryRussian Federation
CityIrkutsk
Period25.6.0129.6.01

Keywords

  • Atmospheric turbulence
  • Fringes
  • Interference pattern
  • Laser beam
  • Singular points
  • Wavefront

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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