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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 2 — Feb. 1, 2010
  • pp: 238–244

Far-field properties in two off-axis superimposed Laguerre–Gaussian beams beyond the paraxial approximation

Yamei Luo and Baida Lü  »View Author Affiliations


JOSA A, Vol. 27, Issue 2, pp. 238-244 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000238


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Abstract

The analytical far-field expressions for the TE and TM terms and energy flux distributions in two off-axis superimposed nonparaxial Laguerre–Gaussian beams with azimuthal and radial indices l 1 = l 2 = + 1 , p 1 = p 2 = 0 are derived and used to study the far-field properties including phase singularities and energy flux distributions of the resulting beam, where our main attention focuses on the dependence of phase singularities on the controlling parameters such as the off-axis distance, relative phase, amplitude ratio, and waist widths of superimposed beams, and the symmetry property of edge dislocations and energy flux distributions. The results are interpreted and compared with previous work.

© 2010 Optical Society of America

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(350.5500) Other areas of optics : Propagation
(140.3298) Lasers and laser optics : Laser beam combining
(260.6042) Physical optics : Singular optics

ToC Category:
Physical Optics

History
Original Manuscript: September 28, 2009
Revised Manuscript: December 7, 2009
Manuscript Accepted: December 7, 2009
Published: January 21, 2010

Citation
Yamei Luo and Baida Lü, "Far-field properties in two off-axis superimposed Laguerre-Gaussian beams beyond the paraxial approximation," J. Opt. Soc. Am. A 27, 238-244 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-2-238


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