Spin to orbital angular momentum transfer in frequency up-conversion-Reference-Cited by-同舟云学术

Spin to orbital angular momentum transfer in frequency up-conversion

Published:2021-11-08 Issue:0 Volume:0 Page:
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Pinheiro da Silva Braian¹,Buono Wagner T.²,Pereira Leonardo J.¹,Tasca Daniel S.¹,Dechoum Kaled¹,Khoury Antonio Z.¹^ORCID

Affiliation:

1. Instituto de Física, Universidade Federal Fluminense , 24210-346 Niterói , RJ , Brazil

2. School of Physics , University of the Witwatersrand , Private Bag 3 , Johannesburg 2050 , South Africa

Abstract

Abstract 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.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0493/pdf

Reference54 articles.

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