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TitleHolographic phase shifting interferometry using liquid crystal television
Publication TypeJournal Article
Year of Publication1995
AuthorsFogle, P.G., Barnes T.H., and Haskell T.G.
JournalOptik (Jena)
Pagination75 - 82
Date Published1995
ISSN00304026 (ISSN)
KeywordsAlgorithms, Binary grating, Diffraction gratings, Digital image processing, Fringes, Holograms, Holographic interferometry, Holographic phase shifting interferometry, Interferometers, Liquid crystal displays, Liquid crystal television, Optical systems, Optical variables measurement, Out-of-plane displacement, Phase shift, Photographic media, Piezoelectric translator, Television
AbstractA novel technique for holographic phase shifting interferometry is described, in which the hologram is written on a liquid crystal television. Phase shifting is achieved using binary gratings, combined with the hologram on the liquid crystal panel. We describe a system which was used to measure small out-of-plane displacements of rough surfaces, and demonstrate its operation with experimental results.

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