Thermal image encryption obtained with a SiO2 space-variant subwavelength grating supporting surface phonon-polaritons

Nir Dahan; Avi Niv; Gabriel Biener; Vladimir Kleiner; Erez Hasman

doi:10.1364/OL.30.003195

Thermal image encryption obtained with a SiO₂ space-variant subwavelength grating supporting surface phonon-polaritons

Nir Dahan
, Avi Niv
, Gabriel Biener
, Vladimir Kleiner
, Erez Hasman

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

18 Scopus citations

Abstract

Space-variant partially polarized thermal emission is investigated. We show that by coupling surface phonon-polaritons to a propagating field, large anisotropy of the emissivity is obtained within a narrow spectral range. We experimentally demonstrate this effect by fabricating a space-variant subwavelength grating on a SiO₂ substrate to encrypt an image in the polarization state of a thermal radiation field.

Original language	English
Pages (from-to)	3195-3197
Number of pages	3
Journal	Optics Letters
Volume	30
Issue number	23
DOIs	https://doi.org/10.1364/OL.30.003195
State	Published - 1 Dec 2005
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.30.003195

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title = "Thermal image encryption obtained with a SiO2 space-variant subwavelength grating supporting surface phonon-polaritons",

abstract = "Space-variant partially polarized thermal emission is investigated. We show that by coupling surface phonon-polaritons to a propagating field, large anisotropy of the emissivity is obtained within a narrow spectral range. We experimentally demonstrate this effect by fabricating a space-variant subwavelength grating on a SiO2 substrate to encrypt an image in the polarization state of a thermal radiation field.",

author = "Nir Dahan and Avi Niv and Gabriel Biener and Vladimir Kleiner and Erez Hasman",

year = "2005",

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doi = "10.1364/OL.30.003195",

language = "English",

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T1 - Thermal image encryption obtained with a SiO2 space-variant subwavelength grating supporting surface phonon-polaritons

AU - Dahan, Nir

AU - Niv, Avi

AU - Biener, Gabriel

AU - Kleiner, Vladimir

AU - Hasman, Erez

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Space-variant partially polarized thermal emission is investigated. We show that by coupling surface phonon-polaritons to a propagating field, large anisotropy of the emissivity is obtained within a narrow spectral range. We experimentally demonstrate this effect by fabricating a space-variant subwavelength grating on a SiO2 substrate to encrypt an image in the polarization state of a thermal radiation field.

AB - Space-variant partially polarized thermal emission is investigated. We show that by coupling surface phonon-polaritons to a propagating field, large anisotropy of the emissivity is obtained within a narrow spectral range. We experimentally demonstrate this effect by fabricating a space-variant subwavelength grating on a SiO2 substrate to encrypt an image in the polarization state of a thermal radiation field.

UR - https://www.scopus.com/pages/publications/29444455011

U2 - 10.1364/OL.30.003195

DO - 10.1364/OL.30.003195

M3 - Article

AN - SCOPUS:29444455011

SN - 0146-9592

VL - 30

SP - 3195

EP - 3197

JO - Optics Letters

JF - Optics Letters

IS - 23

ER -

Thermal image encryption obtained with a SiO₂ space-variant subwavelength grating supporting surface phonon-polaritons

Abstract

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