Accession Number:

ADA263705

Title:

Iterative Encoding Methods for Computer Generated Holograms

Descriptive Note:

Final rept. 1 Oct 1991-30 Sep 1992

Corporate Author:

NORTH CAROLINA UNIV AT CHARLOTTE DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1993-02-08

Pagination or Media Count:

4.0

Abstract:

Iterative encoding methods capable of greatly increasing the performance of CGHs were investigated. An Fl 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 Fl 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.... CGHs, Binary optics, Holography, Iterative encoding, Spot arrays, Optical interconnects.

Subject Categories:

  • Computer Programming and Software
  • Holography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE