Zone areas of diffractive phase elements producing focal annuli

Miroslav Miler; Ivo Koudela; Ivo Aubrecht

doi:10.1117/12.301340

1 January 1998 Zone areas of diffractive phase elements producing focal annuli

Miroslav Miler, Ivo Koudela, Ivo Aubrecht

Proceedings Volume 3320, Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics; (1998) https://doi.org/10.1117/12.301340
Event: Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics, 1996, Karpacz, Poland

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.

Citation Download Citation

Miroslav Miler, Ivo Koudela, and Ivo Aubrecht "Zone areas of diffractive phase elements producing focal annuli", Proc. SPIE 3320, Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics, (1 January 1998); https://doi.org/10.1117/12.301340

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