All-optical polarization holography by means of nematic liquid crystal doped with azobenzene liquid crystal

A. Shishido, M. Y. Shih, Iam-choon Khoo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

All-optical holography of azobenzene-liquid-crystal (ALC) doped nematic liquid crystals (NLC) is investigated by means of polarization and intensity grating methods. The holographic grating is formed upon a total optical power as low as 200 μW/cm2 without any external biases, and can be switched within hundreds of milliseconds. The polarization dependence of the probe beam on the diffraction intensity reveals that the grating formation is attributed to reorientation and order-parameter change of the NLC molecules induced by the photoisomerization of the ALC molecules.

Original languageEnglish (US)
Pages (from-to)143-150
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4107
DOIs
StatePublished - Jan 1 2000

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Azobenzene
Liquid Crystals
optical polarization
Holography
Nematic liquid crystals
Diffraction gratings
Nematic Liquid Crystal
Light polarization
Liquid Crystal
holography
Liquid crystals
Gratings
Polarization
liquid crystals
Molecules
Holographic gratings
Holographic Grating
Photoisomerization
gratings
Order Parameter

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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AU - Shih, M. Y.

AU - Khoo, Iam-choon

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N2 - All-optical holography of azobenzene-liquid-crystal (ALC) doped nematic liquid crystals (NLC) is investigated by means of polarization and intensity grating methods. The holographic grating is formed upon a total optical power as low as 200 μW/cm2 without any external biases, and can be switched within hundreds of milliseconds. The polarization dependence of the probe beam on the diffraction intensity reveals that the grating formation is attributed to reorientation and order-parameter change of the NLC molecules induced by the photoisomerization of the ALC molecules.

AB - All-optical holography of azobenzene-liquid-crystal (ALC) doped nematic liquid crystals (NLC) is investigated by means of polarization and intensity grating methods. The holographic grating is formed upon a total optical power as low as 200 μW/cm2 without any external biases, and can be switched within hundreds of milliseconds. The polarization dependence of the probe beam on the diffraction intensity reveals that the grating formation is attributed to reorientation and order-parameter change of the NLC molecules induced by the photoisomerization of the ALC molecules.

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