Exploitation of the diffraction nulls and phase singularities as a potential encryption add-on function for dynamic coded apertures

Oren Sternberg; Alex Stone

doi:10.1117/12.862094

28 August 2010 Exploitation of the diffraction nulls and phase singularities as a potential encryption add-on function for dynamic coded apertures

Oren Sternberg, Alex Stone

Author Affiliations +

Proceedings Volume 7818, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II; 78180I (2010) https://doi.org/10.1117/12.862094
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Coded aperture imaging technology have been utilized [1] for imaging in various space missions primary associated with X-Ray and Gamma ray sources. The need to extend the coded aperture technique into Visible/IR is pushing the technology and so geometrical features become smaller [2,3]. As the geometrical feature become smaller, second order effect such as diffraction become noticeable. The effects are typically isolated in order to improve Signal-to- Noise Ratio (SNR). In this paper we are exploiting diffraction and interference to use as a coding approach. We propose a coded aperture transmitter/receiver system capable of hiding information (bits) inside the diffraction nulls.

Citation Download Citation

Oren Sternberg and Alex Stone "Exploitation of the diffraction nulls and phase singularities as a potential encryption add-on function for dynamic coded apertures", Proc. SPIE 7818, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems II, 78180I (28 August 2010); https://doi.org/10.1117/12.862094

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