Microcavity-based Generation of Full Poincaré Beams with Arbitrary Skyrmion Numbers
arXiv:2006.15493 · doi:10.1103/PhysRevResearch.3.023055
Abstract
A full Poincaré (FP) beam possesses all possible optical spin states in its cross-section, which constitutes an optical analogue of a skyrmion. Until now, FP beams have been exclusively generated using bulk optics. Here, we propose a generation scheme of an FP beam based on an optical microring cavity. We position two different angular gratings along with chiral lines on a microring cavity and generate an FP beam as a superposition of two light beams with controlled spin and orbital angular momenta. We numerically show that FP beams with tailored skyrmion numbers can be generated from this device, opening a route for developing compact light sources with unique optical spin fields.
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- Photonic spin lattices: symmetry constraints for skyrmion and meron topologies
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- On-Chip Optical Skyrmionic Beam Generators
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- Theory of paraxial optical Skyrmions
- Space-Time Hopfion Crystals
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- Generation and control of extreme ultraviolet free-space optical skyrmions with high harmonic generation
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- Coupled quantum vortex kinematics and Berry curvature in real space
- Skyrmion generation via Laguerre-Gaussian beam irradiation in frustrated magnets