Area encoding for design of phase-only computer-generated holograms

摘要

A new encoding method of phase-only computer-generated holograms (CGH) is proposed in this paper, which is based on the division of each sampling cell into two sub-cells as well as the area modulation of each sub-cell. The holographic function to be recorded is expressed by a sum of two component complex quantities, each allocated to one sub-cell that displays a uniform phase value. Area partitioning of two sub-cells contained in each cell is determined by the relative module value of two component complex variables. Methods of error red-action and improvements are provided, and the computer simulation is presented, proving the capability of the proposed encoding technique. (C) 2002 Published by Elsevier Science B.V. [References: 13]