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Proceedings Paper

Comparison of different simulation methods for multiplane computer generated holograms
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Paper Abstract

Computer generated holograms (CGH) are used to transform an incoming light distribution into a desired output. Recently multi plane CGHs became of interest since they allow the combination of some well known design methods for thin CGHs with unique properties of thick holograms. Iterative methods like the iterative Fourier transform algorithm (IFTA) require an operator that transforms a required optical function into an actual physical structure (e.g. a height structure). Commonly the thin element approximation (TEA) is used for this purpose. Together with the angular spectrum of plane waves (APSW) it has also been successfully used in the case of multi plane CGHs. Of course, due to the approximations inherent in TEA, it can only be applied above a certain feature size. In this contribution we want to give a first comparison of the TEA & ASPW approach with simulation results from the Fourier modal method (FMM) for the example of one dimensional, pattern generating, multi plane CGH.

Paper Details

Date Published: 14 May 2008
PDF: 10 pages
Proc. SPIE 6992, Micro-Optics 2008, 69920M (14 May 2008); doi: 10.1117/12.781916
Show Author Affiliations
Thomas Kämpfe, Friedrich-Schiller-Univ. Jena (Germany)
Florian Hudelist, Heriot-Watt Univ. (United Kingdom)
Andrew J. Waddie, Heriot-Watt Univ. (United Kingdom)
Mohammad R. Taghizadeh, Heriot-Watt Univ. (United Kingdom)
Ernst-Bernhard Kley, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tunnermann, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 6992:
Micro-Optics 2008
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Mohammad R. Taghizadeh, Editor(s)

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