Transformation of topological charge in optical down conversion

I.D. Maleev; A.M. Deykoon; G.A. Swartzlander

Quantum Electronics and Laser Science Conference
OSA Technical Digest (Optica Publishing Group, 2000),
paper QThL4

Transformation of topological charge in optical down conversion

I.D. Maleev, A.M. Deykoon, and G.A. Swartzlander

Quantum Electronics and Laser Science Conference 2000

San Francisco, California United States
7–11 May 2000
ISBN: 1-55752-608-7

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Spatial Solitons 1 (QThL)

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I. D. Maleev, A. M. Deykoon, and G. A. Swartzlander, "Transformation of topological charge in optical down conversion," in Quantum Electronics and Laser Science Conference, T. Gallagher, H. Van Driel, H. Gibbs, and D. Wineland, eds., OSA Technical Digest (Optica Publishing Group, 2000), paper QThL4.

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Abstract

Spontaneous degenerate parametric scattering [down-conversion] is a 3-photon process with one pump photon of frequency 2ω and two output photons of frequency ω. An optical vortex is defined as a beam containing a phase singularity, i.e. the change of phase around the center of the beam equals 2-πm; where the integer m is the topological charge.

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