Short pulse laser beam beyond paraxial approximation
| Autor: | Xing Liu, Aurélien Martens, Kevin Dupraz, Cheikh Fall Ndiaye, Themistoklis Williams, Kevin Cassou, P. Favier, Fabian Zomer |
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| Rok vydání: | 2017 |
| Předmět: |
Electromagnetic field
Physics business.industry Paraxial approximation Physics::Optics Space (mathematics) 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Pulse (physics) 010309 optics Optics 0103 physical sciences Computer Vision and Pattern Recognition Boundary value problem Laser beam quality 010306 general physics business Scalar field Parametrization |
| Zdroj: | Journal of the Optical Society of America. A, Optics, image science, and vision. 34(8) |
| ISSN: | 1520-8532 |
| Popis: | Nonparaxial perturbative equations are derived from the scalar wave equation by taking into account spatiotemporal couplings. General solutions are obtained in Fourier space and further transformed back in direct space. They depend on parameters that can be used to match various boundary conditions and the perturbative expansion of any nonparaxial exact solutions. This parametrization is used to study the sensitivity of direct electron acceleration off an ultrashort tightly focused laser pulse to nonparaxial corrections of radially polarized electromagnetic fields. |
| Databáze: | OpenAIRE |
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