Generalized Orbital Angular Momentum Symmetry in Parametric Amplification
R. B. Rodrigues,
G. B. Alves,
R. F. Barros
et al.
Abstract:We investigate interesting symmetry properties verified by the down-converted beams produced in optical parametric amplification with structured light. We show that the Poincaré sphere symmetry, previously demonstrated for first-order spatial modes, translates to a multiple Poincaré sphere structure for higher orders. Each one of these multiple spheres is associated with a two-dimensional subspace defined by a different value of the orbital angular momentum. Therefore, the symmetry verified by first order mode… Show more
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