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Proceedings Paper

Dynamic sub-wavelength encryption
Author(s): Vardit Eckhouse; Zeev Zalevsky; David Mendlovic
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Paper Abstract

The suggested device includes a spatial light modulator (SLM) allowing varying the polarization state of an input illumination source. Attached to the SLM a sub wavelength grating is placed per each pixel of the device. This grating is used to encode the input information. The decoding is done by another sub wavelength grating. When the two gratings are attached a variation of the energetic efficiency between the two polarization states occurs. The polarization ratio encrypts the spatial information stream. The sub wavelength grating are hard to copy and thus high encryption capability is obtained.

Paper Details

Date Published: 30 January 2003
PDF: 8 pages
Proc. SPIE 4793, Mathematics of Data/Image Coding, Compression, and Encryption V, with Applications, (30 January 2003); doi: 10.1117/12.452360
Show Author Affiliations
Vardit Eckhouse, Tel Aviv Univ. (Israel)
Zeev Zalevsky, Tel Aviv Univ. (Israel)
David Mendlovic, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 4793:
Mathematics of Data/Image Coding, Compression, and Encryption V, with Applications
Mark S. Schmalz, Editor(s)

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