6533b826fe1ef96bd1283c4a
RESEARCH PRODUCT
Multifractal zone plates
Juan A. MonsoriuWalter D. FurlanArnau CalatayudFernando Giménezsubject
DiffractionPhysicsFresnel zonebusiness.industryComposite numberMultifractal systemZone plateDiffraction efficiencyAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOpticsFractallawFocal lengthComputer Vision and Pattern Recognitionbusinessdescription
We present multifractal zone plates (MFZPs) as what is to our knowledge a new family of diffractive lenses whose structure is based on the combination of fractal zone plates (FZPs) of different orders. The typical result is a composite of two FZPs with the central one having a first-order focal length f surrounded by outer zones with a third-order focal length f. The focusing properties of different members of this family are examined and compared with conventional composite Fresnel zone plates. It is shown that MFZPs improve the axial resolution and also give better performance under polychromatic illumination.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-06 |