Nonlinear polarization rotation of two types of vector beams through isotropic Kerr nonlinearities

Photorefractive Photonics 2017

Gu, Bing^1 ; Wen, Bo^1 ; Rui, Guanghao^1 ; Cui, Yiping^1

Advanced Photonics Center, Southeast University, Nanjing

210096, China^1

关键词: Elliptically polarized vector;    Nonlinear characterization;    Nonlinear polarization rotation;    Optical nonlinearity;    Spatial self-phase modulation;    Spin angular momentum;    State of polarization;    Theoretical investigations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/867/1/012012/pdf
DOI  :  10.1088/1742-6596/867/1/012012

来源: IOP

【 摘 要 】

We report a theoretical investigation of the spatial self-phase modulation (SSPM) effect and nonlinear ellipse rotation of both hybridly polarized vector beams and elliptically polarized vector beams through isotropic Kerr nonlinearities. It is demonstrated that the SSPM intensity pattern, the distribution of state of polarization, and the spin angular momentum (SAM) flux of a hybridly polarized vector beam could be manipulated by tuning the magnitude of the isotropic optical nonlinearity. Interestingly, we observed the radial-variant nonlinear ellipse rotation of elliptically polarized vector beams through isotropic Kerr nonlinearities. Our results may find interesting applications in nonlinear mechanism analysis, nonlinear characterization technique, and SAM manipulation.