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Proceedings Paper

Investigation of computer-generated diffractive beam shapers for the task of Gauss-to-ring laser beam transformation
Author(s): Michael Rudolf Duparre; Barbara Luedge; Richard M. Kowarschik; Michael A. Golub; Ernst-Bernhard Kley; Hans-Joerg Fuchs
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Paper 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.

Paper Details

Date Published: 7 May 1996
PDF: 8 pages
Proc. SPIE 2689, Diffractive and Holographic Optics Technology III, (7 May 1996); doi: 10.1117/12.239615
Show Author Affiliations
Michael Rudolf Duparre, Univ. Jena (Germany)
Barbara Luedge, Univ. Jena (Germany)
Richard M. Kowarschik, Univ. Jena (Germany)
Michael A. Golub, Univ. Jena (Germany)
Ernst-Bernhard Kley, Univ. Jena (Germany)
Hans-Joerg Fuchs, Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 2689:
Diffractive and Holographic Optics Technology III
Ivan Cindrich; Sing H. Lee, Editor(s)

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