Liu, B.; Huang, Y.; Liu, C.; Wu, S.-D.; Chew, K.-H.; Chen, R.-P. Influence of High-Order Twisting Phases on Polarization States and Optical Angular Momentum of a Vector Light Field. Photonics2023, 10, 1099.
Liu, B.; Huang, Y.; Liu, C.; Wu, S.-D.; Chew, K.-H.; Chen, R.-P. Influence of High-Order Twisting Phases on Polarization States and Optical Angular Momentum of a Vector Light Field. Photonics 2023, 10, 1099.
Liu, B.; Huang, Y.; Liu, C.; Wu, S.-D.; Chew, K.-H.; Chen, R.-P. Influence of High-Order Twisting Phases on Polarization States and Optical Angular Momentum of a Vector Light Field. Photonics2023, 10, 1099.
Liu, B.; Huang, Y.; Liu, C.; Wu, S.-D.; Chew, K.-H.; Chen, R.-P. Influence of High-Order Twisting Phases on Polarization States and Optical Angular Momentum of a Vector Light Field. Photonics 2023, 10, 1099.
Abstract
We study the influence of high-order twisting phases on polarization states and optical angular momentum of a vector light field with locally linear polarization and a hybrid state of polarization (SoP). The initial SoP of a twisted vector optical field (TVOF) modulated by the high-order twisting phase possesses various symmetric distributions. The propagating properties of a high-order TVOF with locally linear polarization and hybrid SoP are explored, including the intensity compression, expansion, and conversion between the linear and circular polarization components. In particular, orbital angular momentum (OAM) appears in a high-order TVOF during propagation where no OAM exists in the initial field. The variation of OAM distribution in cross-section becomes more frequent with the increase of the twisting phase order. In addition, a non-symmetric OAM distribution appears in an anisotropic TVOF, leading to the rotation of the beam around the propagation axis during propagation. These results provide a new approach for optical field manipulation in a high-order TVOF.
Keywords
high-order twisting phases; state of polarization; vector optical fields; orbital angular momentum
Subject
Physical Sciences, Optics and Photonics
Copyright:
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