Space-variant polarization scrambling for image encryption obtained with subwavelength gratings

Gabriel Biener; Avi Niv; Vladimir Kleiner; Erez Hasman

doi:10.1016/j.optcom.2005.11.062

Space-variant polarization scrambling for image encryption obtained with subwavelength gratings

Gabriel Biener, Avi Niv, Vladimir Kleiner, Erez Hasman

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We present an optical encryption method based on geometrical phase, which is originated from polarization manipulation. The decrypted picture is retrieved by measuring the polarization of the beam emerging from the encrypted element. The encrypted element is achieved by using a computer-generated space-variant subwavelength dielectric grating. Theoretical analyses of the optical concept by use of Jones and Mueller formalisms, as well as experimental results including full optical decryption process are introduced. Digital implementation and the possibility of using watermarking are also discussed.

Original language	English
Pages (from-to)	5-12
Number of pages	8
Journal	Optics Communications
Volume	261
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2005.11.062
State	Published - 1 May 2006
Externally published	Yes

Keywords

Geometrical phase
Optical encryption
Pancharatnam phase
Polarization encoding
Subwavelength gratings

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2005.11.062

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title = "Space-variant polarization scrambling for image encryption obtained with subwavelength gratings",

abstract = "We present an optical encryption method based on geometrical phase, which is originated from polarization manipulation. The decrypted picture is retrieved by measuring the polarization of the beam emerging from the encrypted element. The encrypted element is achieved by using a computer-generated space-variant subwavelength dielectric grating. Theoretical analyses of the optical concept by use of Jones and Mueller formalisms, as well as experimental results including full optical decryption process are introduced. Digital implementation and the possibility of using watermarking are also discussed.",

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T1 - Space-variant polarization scrambling for image encryption obtained with subwavelength gratings

AU - Biener, Gabriel

AU - Niv, Avi

AU - Kleiner, Vladimir

AU - Hasman, Erez

PY - 2006/5/1

Y1 - 2006/5/1

N2 - We present an optical encryption method based on geometrical phase, which is originated from polarization manipulation. The decrypted picture is retrieved by measuring the polarization of the beam emerging from the encrypted element. The encrypted element is achieved by using a computer-generated space-variant subwavelength dielectric grating. Theoretical analyses of the optical concept by use of Jones and Mueller formalisms, as well as experimental results including full optical decryption process are introduced. Digital implementation and the possibility of using watermarking are also discussed.

AB - We present an optical encryption method based on geometrical phase, which is originated from polarization manipulation. The decrypted picture is retrieved by measuring the polarization of the beam emerging from the encrypted element. The encrypted element is achieved by using a computer-generated space-variant subwavelength dielectric grating. Theoretical analyses of the optical concept by use of Jones and Mueller formalisms, as well as experimental results including full optical decryption process are introduced. Digital implementation and the possibility of using watermarking are also discussed.

KW - Geometrical phase

KW - Optical encryption

KW - Pancharatnam phase

KW - Polarization encoding

KW - Subwavelength gratings

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EP - 12

JO - Optics Communications

JF - Optics Communications

IS - 1

ER -

Space-variant polarization scrambling for image encryption obtained with subwavelength gratings

Abstract

Keywords

ASJC Scopus subject areas

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