Permanent photoalignment of liquid crystals on nanostructured chalcogenide glassy thin films

Miri Gelbaor; Matvey Klebanov; Victor Lyubin; I. Abdulhalim

doi:10.1063/1.3555630

Permanent photoalignment of liquid crystals on nanostructured chalcogenide glassy thin films

Miri Gelbaor, Matvey Klebanov, Victor Lyubin, I. Abdulhalim

Department of Physics

Ben-Gurion University of the Negev

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

Abstract

Photoalignment of nematic liquid crystals is obtained on the chalcogenide glassy thin film of As₂ S₃ using irradiation with polarized blue light. A uniform homogeneously aligned device is obtained with high contrast and strong anchoring. The device alignment quality is permanent as checked by following its functionality over a period of few months. The origin of the observed photoalignment is attributed to the photoinduced anisotropy in chalcogenide glasses. No differences between the different As₂ S ₃ film thicknesses observed, thus supporting the proposition that some orientational order is photoinduced on the surface of the glass and responsible for the photoalignment.

Original language	American English
Article number	071909
Journal	Applied Physics Letters
Volume	98
Issue number	7
DOIs	https://doi.org/10.1063/1.3555630
State	Published - 14 Feb 2011

Keywords

Amorphous materials
Chemical Bonding
Display devices
Geometrical optics
Glass
Interferometry
Liquid crystals
Optical interference
Optical properties
Thin films

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3555630

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title = "Permanent photoalignment of liquid crystals on nanostructured chalcogenide glassy thin films",

abstract = "Photoalignment of nematic liquid crystals is obtained on the chalcogenide glassy thin film of As2 S3 using irradiation with polarized blue light. A uniform homogeneously aligned device is obtained with high contrast and strong anchoring. The device alignment quality is permanent as checked by following its functionality over a period of few months. The origin of the observed photoalignment is attributed to the photoinduced anisotropy in chalcogenide glasses. No differences between the different As2 S 3 film thicknesses observed, thus supporting the proposition that some orientational order is photoinduced on the surface of the glass and responsible for the photoalignment.",

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AU - Gelbaor, Miri

AU - Klebanov, Matvey

AU - Lyubin, Victor

AU - Abdulhalim, I.

PY - 2011/2/14

Y1 - 2011/2/14

N2 - Photoalignment of nematic liquid crystals is obtained on the chalcogenide glassy thin film of As2 S3 using irradiation with polarized blue light. A uniform homogeneously aligned device is obtained with high contrast and strong anchoring. The device alignment quality is permanent as checked by following its functionality over a period of few months. The origin of the observed photoalignment is attributed to the photoinduced anisotropy in chalcogenide glasses. No differences between the different As2 S 3 film thicknesses observed, thus supporting the proposition that some orientational order is photoinduced on the surface of the glass and responsible for the photoalignment.

AB - Photoalignment of nematic liquid crystals is obtained on the chalcogenide glassy thin film of As2 S3 using irradiation with polarized blue light. A uniform homogeneously aligned device is obtained with high contrast and strong anchoring. The device alignment quality is permanent as checked by following its functionality over a period of few months. The origin of the observed photoalignment is attributed to the photoinduced anisotropy in chalcogenide glasses. No differences between the different As2 S 3 film thicknesses observed, thus supporting the proposition that some orientational order is photoinduced on the surface of the glass and responsible for the photoalignment.

KW - Amorphous materials

KW - Chemical Bonding

KW - Display devices

KW - Geometrical optics

KW - Glass

KW - Interferometry

KW - Liquid crystals

KW - Optical interference

KW - Optical properties

KW - Thin films

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DO - 10.1063/1.3555630

M3 - Article

SN - 0003-6951

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

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M1 - 071909

ER -

Permanent photoalignment of liquid crystals on nanostructured chalcogenide glassy thin films

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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