26 February 2018 Non-paraxial diffractive and refractive laser beam shaping
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Abstract
We discuss the implications of the modeling and the design of diffractive and refractive freeform surfaces in nonparaxial regions of the fields to shape the profile of a laser beam in its far field, its focus or any other region. The fast physical optics approach employed enables the inclusion of freeform surfaces and diffractive beam shaping elements in the modeling. The design of beam shaping elements follows an inverse physical optics approach. We will discuss the pros and cons of refractive and diffractive solutions together with examples.
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Liangxin Yang, Roberto Knoth, Christian Hellmann, Frank Wyrowski, "Non-paraxial diffractive and refractive laser beam shaping", Proc. SPIE 10518, Laser Resonators, Microresonators, and Beam Control XX, 105181Q (26 February 2018); doi: 10.1117/12.2290744; https://doi.org/10.1117/12.2290744
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