2012/01/06 by Filippus S. Roux, Roux, Filippus S.
Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Optics (physics.optics) #Orbital Angular Momentum in Optics #Quantum Physics (quant-ph) #Quantum optics and atomic interactions #physics.optics #quant-ph
paper · pdf · doi:10.48550/arxiv.1201.1372
11 pages, 4 figures
arxiv created 2012/01/06 · openalex publication_date 2012/01/06 · arxiv updated 2012/01/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Bessel-Gaussian modal spectrum, generated in spontaneous parametric down-conversion of a Gaussian pump beam, is considered. This is done by first deriving a general expression for the true probability of detecting specific transverse spatial modes for the pairs of photons generated in a spontaneous parametric down-conversion process. These expressions are applied for Bessel-Gaussian modes in type I phase matching with collinear, degenerate down-converted beams. The result shows that a broad orbital angular momentum spectrum can be obtained for Bessel-Gaussian modes under certain conditions.