Spin to orbital angular momentum transfer in nonlinear wave mixing

B. Pinheiro da Silva, W. T. Buono, L. J. Pereira, D. S. Tasca, K. Dechoum, A. Z. Khoury (Lead / Corresponding author)

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We demonstrate the spin to orbital angular momentum transfer in frequency upconversion with structured light beams. A vector vortex is coupled to a circularly polarized Gaussian beam in noncollinear second harmonic generation under type-II phase match. The second harmonic beam inherits the Hermite–Gaussian components of the vector vortex; however, the relative phase between them is determined by the polarization state of the Gaussian beam. This effect creates an interesting crosstalk between spin and orbital degrees of freedom, allowing the angular momentum transfer between them. Our experimental results match the theoretical predictions for the nonlinear optical response.
Original languageEnglish
Title of host publicationProceedings Frontiers in Optics + Laser Science 2022 (FIO, LS)
Number of pages8
ISBN (Electronic)9781557528209
Publication statusPublished - 2022
EventFrontiers in Optics - Rochester, United States
Duration: 17 Oct 202220 Oct 2022

Publication series

NameTechnical Digest Series


ConferenceFrontiers in Optics
Abbreviated titleFiO 2022
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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