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Iterative calculation, manufacture and investigation of an element focusing a Gaussian illuminating beam into a ring focal region
V.S. Pavelyev, V.A. Soifer, M. Duparre1,R. Kowarschik1, B. Luedge1, B.Fuchs2
1Institute of Applied Optics, Friedrich Schiller University (Jena, Germany)
2Institute of Applied Physics, Friedrich Schiller University (Jena, Germany)

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Pages: 111-114.

Full text of article: Russian language.

Abstract:
The paper describes the iterative calculation, technological implementation and investigation of a diffractive element focusing a Gaussian illuminating beam into an annular illuminating region. The calculation was performed using a highly efficient iterative procedure that involves the calculation of only two one-dimensional Fourier transforms per iteration.
The element is produced by power etching of quartz glass at sixteen levels, followed by gold sputtering. The results of the full-scale experiment are in good agreement with the results of the computational experiment .

Citation:
Pavelyev VS, Soifer VA, Duparre M, Kowarschik R, Luedge B, Fuchs B. Iterative calculation, manufacture and investigation of an element focusing a Gaussian illuminating beam into a ring focal region. Computer Optics 1998; 18: 111-114.

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