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Optical Engineering • Open Access

Hiding binary optical data with orthogonal circular polarizations
Author(s): Jose Luis Martinez; Ignacio S. Moreno; Felipe Mateos

Paper Abstract

We discuss a very simple method to encode binary data as circular polarization states with opposite helicity by means of a standard twisted nematic liquid crystal display (TN-LCD). This idea is applied to produce a steganographic imaging system, where binary data are hidden on a background with the same polarization but opposed helicity. A variant is also proposed that maintains some visible information. Experimental results obtained with a commercial TN-LCD are presented.

Paper Details

Date Published: 1 March 2008
PDF: 3 pages
Opt. Eng. 47(3) 030504 doi: 10.1117/1.2890479
Published in: Optical Engineering Volume 47, Issue 3
Show Author Affiliations
Jose Luis Martinez, Univ. Miguel Hernández de Elche (Spain)
Ignacio S. Moreno, Univ. Miguel Hernández de Elche (Spain)
Felipe Mateos, Univ. Miguel Hernández de Elche (Spain)

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