Wavefront dislocations of Gaussian beams nesting optical vortices in a turbulent atmosphere
Chinese Optics Letters, Vol. 2, Issue 10, pp. 559-561 (2004)
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Abstract
A phase singularity of the light field created by interference of two Gaussian singular beams which propagate in a weak and near ground turbulent atmosphere is analyzed by the Rytov approximation and the short-term averaging method of the dislocation-position. We demonstrate that an edge or circular dislocation may be formed by both parallel and coaxial or noncoaxial collimated beams with different or equal beam-width interfere. The edge or circular short-term wavefront dislocations of super position field depend on the atmospheric turbulence strength, beam propagation distance, amplitude ratio, dislocation of nesting vortices, and beam-width or beam-width ratio of the individual beams.
© 2005 Chinese Optics Letters
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(350.5030) Other areas of optics : Phase
Citation
Yixin Zhang and Chunkan Tao, "Wavefront dislocations of Gaussian beams nesting optical vortices in a turbulent atmosphere," Chin. Opt. Lett. 2, 559-561 (2004)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-2-10-559
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