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Proceedings Paper

Zone areas of diffractive phase elements producing focal annuli
Author(s): Miroslav Miler; Ivo Koudela; Ivo Aubrecht
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Paper Abstract

A diffractive element which generates annular light source is investigated from the point of view of its area optimization. In the paraxial approximation, the zones distribution of such an element can be described by a double parabola. As the zone areas of this element are not the same, the equalization of first two zone areas is proposed in order to improve the diffraction efficiency.

Paper Details

Date Published: 1 January 1998
PDF: 4 pages
Proc. SPIE 3320, Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics, (1 January 1998); doi: 10.1117/12.301340
Show Author Affiliations
Miroslav Miler, Institute of Radio Engineering and Electronics (Czech Republic)
Ivo Koudela, Institute of Radio Engineering and Electronics (Czech Republic)
Ivo Aubrecht, Institute of Radio Engineering and Electronics (Czech Republic)


Published in SPIE Proceedings Vol. 3320:
Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics
Jerzy Nowak; Marek Zajac, Editor(s)

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