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- W3204193619 abstract "Structured light applications [1] , [2] require introducing a phase aberration to shape the beam for a specific purpose and with these applications, often strong focusing is involved. The demand for modeling algorithms to handle every regime of propagation is increasing. Geometrical optics do not require the full sampling of the electromagnetic field in contrast to physical optics methods, as such, beams with strong phase factors are managed more efficiently. Although it is not accurate near the focal regions, geometrical optics can be used for regions with spatial variations of the refractive index. All necessary information is the mapping function from the input to the output plane, which can be acquired via ray-tracing. Propagation to the focal plane especially in a non-paraxial regime can be realized using Debye-Wolf (DW) integral; this solution is suited for well-designed systems since does approximate the amplitude strength factor as for an ideal lens. By strength factor of a ray, first defined in [3] , we refer to the Jacobian determinant of the ray mapping from the input to the output plane. A generalized version of DW that evaluates the amplitude strength factor numerically from the second-order derivatives of the phase function was described in [4] , this being valid also when stronger aberrations are present." @default.
- W3204193619 created "2021-10-11" @default.
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- W3204193619 date "2021-06-21" @default.
- W3204193619 modified "2023-10-16" @default.
- W3204193619 title "Accurate beam propagation methods assisted by ray-tracing" @default.
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- W3204193619 doi "https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542622" @default.
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