Optical addressing in dye-doped cholesteric liquid crystals

Ko Ting Cheng; Cheng Kai Liu; Chi Lun Ting; Andy Ying Guey Fuh

doi:10.1016/j.optcom.2008.07.028

Optical addressing in dye-doped cholesteric liquid crystals

Ko Ting Cheng, Cheng Kai Liu, Chi Lun Ting, Andy Ying Guey Fuh

Department of Optics and Photonics

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

15 Scopus citations

Abstract

This study investigates a method of optical addressing in dye-doped cholesteric liquid crystals (DDCLCs). Photo-induced randomly adsorbed dyes can change the CLC textures from planar to focal conic. Such patterning can be adopted to develop a display that is initially invisible, but becomes visible upon heating above the clearing temperature, followed by cooling to room temperature. The display can also become visible upon the application of a suitable voltage, and its rapid release. Additionally, the display is thermally erasable, optically rewritable and electrically switchable. It can be applied for use as a smart card.

Original language	English
Pages (from-to)	5133-5139
Number of pages	7
Journal	Optics Communications
Volume	281
Issue number	20
DOIs	https://doi.org/10.1016/j.optcom.2008.07.028
State	Published - 15 Oct 2008

Keywords

Adsorption
Azo dye
Cholesteric
Liquid crystals

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10.1016/j.optcom.2008.07.028

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title = "Optical addressing in dye-doped cholesteric liquid crystals",

abstract = "This study investigates a method of optical addressing in dye-doped cholesteric liquid crystals (DDCLCs). Photo-induced randomly adsorbed dyes can change the CLC textures from planar to focal conic. Such patterning can be adopted to develop a display that is initially invisible, but becomes visible upon heating above the clearing temperature, followed by cooling to room temperature. The display can also become visible upon the application of a suitable voltage, and its rapid release. Additionally, the display is thermally erasable, optically rewritable and electrically switchable. It can be applied for use as a smart card.",

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AU - Liu, Cheng Kai

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AU - Fuh, Andy Ying Guey

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Y1 - 2008/10/15

N2 - This study investigates a method of optical addressing in dye-doped cholesteric liquid crystals (DDCLCs). Photo-induced randomly adsorbed dyes can change the CLC textures from planar to focal conic. Such patterning can be adopted to develop a display that is initially invisible, but becomes visible upon heating above the clearing temperature, followed by cooling to room temperature. The display can also become visible upon the application of a suitable voltage, and its rapid release. Additionally, the display is thermally erasable, optically rewritable and electrically switchable. It can be applied for use as a smart card.

AB - This study investigates a method of optical addressing in dye-doped cholesteric liquid crystals (DDCLCs). Photo-induced randomly adsorbed dyes can change the CLC textures from planar to focal conic. Such patterning can be adopted to develop a display that is initially invisible, but becomes visible upon heating above the clearing temperature, followed by cooling to room temperature. The display can also become visible upon the application of a suitable voltage, and its rapid release. Additionally, the display is thermally erasable, optically rewritable and electrically switchable. It can be applied for use as a smart card.

KW - Adsorption

KW - Azo dye

KW - Cholesteric

KW - Liquid crystals

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EP - 5139

JO - Optics Communications

JF - Optics Communications

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ER -

Optical addressing in dye-doped cholesteric liquid crystals

Abstract

Keywords

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