Broadband Diffractive Lens,
Abstract
Significant progress has been made toward solving the century-old problem of chromatic aberrations in diffractive optics. Our approach exploits modern materials and microfabrication technology and is very different from the 'purely diffractive strategy', which is commonly employed and which results in multiple diffractive elements separated by a finite distance. We have developed a Fresnel zone plate lens comprised of a serial stack of patterned minus-filters which allows broadband radiation to be focussed (or imaged) without longitudinal or transverse chromatic aberrations. Diffractive optics, such as the Fresnel zone plate shown in Figure 1, are commonly used for imaging and focussing radiation at wavelengths for which refraction is not a viable option.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP007065
Entities
People
- A. M. Hawryluk
- D. P. Gaines
- L. G. Seppala
- N. M. Ceglio
- R. A. London
Organizations
- Lawrence Livermore National Laboratory