Thesis

Phase optimised general error diffusion for diffractive optical component design

Downloadable Content

Download PDF
Creator
Rights statement
Awarding institution
  • University of Strathclyde
Date of award
  • 2013
Thesis identifier
  • T13631
Qualification Level
Qualification Name
Department, School or Faculty
Abstract
  • Algorithms for developing Diffractive Optical Elements (DOEs) are improved to achieve real time holograms capable of switching at rates of 25frames/second or greater. A Phase Optimised General Error Diffusion (POGED) algorithm optimised for quality and speed of generation of diffractive elements is the main contribution of the research. Compared to Simulated Annealing algorithms, a fourfold improvement in the speed of generation is achieved. The algorithm is further enhanced to operate in the Fresnel region with high diffraction efficiency and Signal-to-Noise Ratio (SNR). A number of different target reconstructions are simulated to determine validity and performance of the algorithm. Diffractive optical elements are fabricated to verify performance and a free space optical beam steering application is defined to further validate a DOE generated by POGED. The performance of the diffractive optical elements is proven through the design and characterisation of a free space optical interconnect amenable to harnessing the fast switching speeds of liquid crystal spatial light modulators.
Resource Type
DOI
Date Created
  • 2013
Former identifier
  • 1004499

Relations

Items

Thumbnail Title Date Uploaded Visibility Actions
file details PDF of thesis T13631 2021-07-02 Public Download