Mathematical Tool for Calculating the Microstructure of a Harmonic Kinoform Lens
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The paper presents a mathematical tool based on the requirement of tautochronism in each of the diffraction orders of a harmonic kinoform lens, which was used as the basis to develop a method for calculating the lens microstructure. The method provides a limitation of the relative longitudinal chromatism of the lens to a given level. In addition, it allows obtaining the initial parameters necessary for the ray calculation and optimization of an optical system with a harmonic kinoform lens using well-known commercial optical design computer programs.
Keywordsharmonic kinoform lens harmonic Fresnel zone sawtooth relief-phase microstructure tautochronism longitudinal chromatism
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