journal article·2020-01-15Open access

Real-Time Phase Conjugation of Vector Vortex Beams

André G. de Oliveira, Marcelo F. Z. Arruda, Willamys C. Soares, Stephen P. Walborn, Rafael M. Gomes, Renné Medeiros de Araújo, Paulo H. Souto Ribeiro

ACS Photonics· Volume 7· Issue 1

Abstract

Vector vortex beams have played a fundamental role in the better understanding of coherence and polarization. They are described by spatially inhomogeneous polarization states, which present a rich optical mode structure that has attracted much attention for applications in optical communications, imaging, spectroscopy, and metrology. However, this complex mode structure can be quite detrimental when propagation effects such as turbulence and birefringence perturb the beam. Optical phase conjugation has been proposed as a method to recover an optical beam from perturbations. Here we demonstrate full phase conjugation of vector vortex beams using three-wave mixing. Our scheme exploits a fast nonlinear process that can be conveniently controlled via the pump beam. Our results pave the way for sophisticated, practical applications of vector beams.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Orbital Angular Momentum in Optics · Random lasers and scattering media · Nonlinear Photonic Systems

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil

Instituto Federal de Mato Grosso, Sorriso, MT 78890-000, Brazil

Universidade Federal de Alagoas, Campus Arapiraca, Arapiraca, AL 57309-005, Brazil

Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21945-970, Brazil

Instituto de Física, Universidade Federal de Goiás, Goiânia, GO 74690-900, Brazil

Funding

Funda??o de Amparo ? Pesquisa do Estado de Goi?s · Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico · Instituto Nacional de Ci?ncia e Tecnologia de Informa??o Qu?ntica · Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do Rio de Janeiro · Funda??o de Amparo ? Pesquisa e Inova??o do Estado de Santa Catarina · Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior · Funda??o?de?Amparo???Pesquisa?do?Estado?de?Alagoas

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