6533b86efe1ef96bd12cc861

RESEARCH PRODUCT

White-light imaging with fractal zone plates

Genaro SaavedraJuan A. MonsoriuWalter D. Furlan

subject

DiffractionPhysicsFresnel zonebusiness.industryPhysics::OpticsZone plateAtomic and Molecular Physics and Opticslaw.inventionFractalOpticslawOptical transfer functionChromatic aberrationDepth of fieldbusinessFresnel diffraction

description

We report the achievement of the first images to our knowledge obtained with a fractal zone plates (FraZPs). FraZPs are diffractive lenses characterized by the fractal structure of their foci. This property predicts an improved performance of FraZPs as image forming devices with an extended depth of field and predicts a reduced chromatic aberration under white-light illumination. These theoretical predictions are confirmed experimentally in this work. We show that the polychromatic modulation transfer function of a FraZP affected by defocus is about two times better than one corresponding to a Fresnel zone plate.

yearjournalcountryeditionlanguage
2007-07-19Optics Letters
https://doi.org/10.1364/ol.32.002109