Vortex solitons with inhomogeneous polarization in nonlocal self-focusing nonlinear media
| Autor: | Ming Shen, Qian Kong, Qi Wang, Jielong Shi, Li-Juan Ge |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Linear polarization Self-focusing Polarization (waves) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Vortex Quantum nonlocality Nonlinear system Quantum mechanics Gravitational singularity Electrical and Electronic Engineering Nonlinear Sciences::Pattern Formation and Solitons Topological quantum number |
| Zdroj: | Optik. 122:749-753 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2010.05.017 |
| Popis: | Both azimuthally and radially polarized vortex solitons are investigated to be able to exist in highly nonlocal nonlinear media. We get exactly analytical solutions of azimuthally polarized vortex solitons with only polarization singularities and radially polarized vortex solitons with both phase singularities and polarization singularities. Both azimuthally and radially polarized vortex solitons can exist in nonlocal self-focusing nonlinear media with proper modulation of the beam power and the degree of nonlocality. Contrary to those of radially polarized counterparts in local Kerr media, the topological charge can be any integer. When the topological charge m ≠ 0, both phase singularities and polarization singularities work. When m = 0, the polarization singularities work. Azimuthally polarized vortex solitons with polarization singularities corresponds to the linearly polarized vortex solitons with single charge. Our results show that polarization singularities work the same way as phase singularities in some sense. |
| Databáze: | OpenAIRE |
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