Phase conjugation and mode conversion in stimulated parametric down-conversion with orbital angular momentum: a geometrical interpretation
arXiv:1808.10398 · doi:10.1007/s13538-018-0614-4
Abstract
We report on an experiment that investigates the spatial mode conversion in the process of parametric down-conversion seeded by a light beam in a superposition of orbital angular momentum modes. This process is interpreted in terms of a geometric representation of first-order spatial modes in a Poincaré sphere, providing an intuitive image of the phase conjugation and the topological charge conservation. We also make a comparison with the analogous phenomenon for optical parametric oscillators.
arXiv comment5 pages, 6 figures
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Cited by in corpus (4)
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- Quantum-optical Description of Phase Conjugation of Vector Vortex Beams in Stimulated Parametric Down Conversion
- Generalized Orbital Angular Momentum Symmetry in Parametric Amplification
- Poincaré sphere symmetries in four-wave mixing with orbital angular momentum