Back to Search
Start Over
Fractal spiral zone plates
- Source :
- Journal of the Optical Society of America A: Optics, Image Science & Vision; May 2018, Vol. 35 Issue: 5 p726-731, 6p
- Publication Year :
- 2018
-
Abstract
- We present diffractive optical elements with an extended depth of focus, namely, fractal spiral zone plates (FSZPs), which combine a fractal structure and spiral zone plates (SZPs) to generate a sequence of coaxial vortices in the focal volume along the propagation direction. The axial irradiance of the FSZPs is examined both experimentally and in a simulation and is compared with that of SZPs and that of fractal zone plates. The focusing properties of the FSZPs with different parameters are investigated, and a potential application to edge-enhancement images is also shown.
Details
- Language :
- English
- ISSN :
- 10847529 and 15208532
- Volume :
- 35
- Issue :
- 5
- Database :
- Supplemental Index
- Journal :
- Journal of the Optical Society of America A: Optics, Image Science & Vision
- Publication Type :
- Periodical
- Accession number :
- ejs45301955