Iterative Encoding Methods for Computer Generated Holograms
Abstract
Iterative encoding methods capable of greatly increasing the performance of CGH's were investigated. An F/l holographic lens, designed with an iterative encoding method was measured to have a diffraction efficiency of 87%. This is the highest reported efficiency for an F/l element. A recursive Mean Squared Error Algorithm was developed to reduce the computation time. A hologram was fabricated to generate a 32x32 spot array. The experimental measurements indicated a diffraction efficiency of 72% and uniformity of + or - 1%. This is the highest reported diffraction efficiency for such large-sized spot arrays.... CGH's, Binary optics, Holography, Iterative encoding, Spot arrays, Optical interconnects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 08, 1993
- Accession Number
- ADA263705
Entities
People
- Michael R. Feldman
Organizations
- University of North Carolina at Charlotte