7 May 1996 Investigation of computer-generated diffractive beam shapers for the task of Gauss-to-ring laser beam transformation
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Abstract
To solve a special task of laser-beam material treatment, a new diffractive element was designed, fabricated and investigated, which converts a given single-mode CO2-laser beam into a ring-shaped intensity distribution in the working plane. This was accomplished by application of refined ray-tracing methods and an enhanced micro technology using e-beam generated masks. Relevant steps of calculation and manufacturing of these masks are outlined. First results of measured intensity distribution demonstrate a good conformity with results of computer simulations.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Rudolf Duparre, Michael Rudolf Duparre, Barbara Luedge, Barbara Luedge, Richard M. Kowarschik, Richard M. Kowarschik, Michael A. Golub, Michael A. Golub, Ernst-Bernhard Kley, Ernst-Bernhard Kley, Hans-Joerg Fuchs, Hans-Joerg Fuchs, } "Investigation of computer-generated diffractive beam shapers for the task of Gauss-to-ring laser beam transformation", Proc. SPIE 2689, Diffractive and Holographic Optics Technology III, (7 May 1996); doi: 10.1117/12.239615; https://doi.org/10.1117/12.239615
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