Studies of holographic gratings formed in polymer-dispersed liquid crystal films and their dynamical behavior

Andy Ying Guey Fuh, Tsung Chin Ko, Ming Shann Tsai, Chi-Yen Huang, Liang Chy Chien

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have developed an economic liquid crystal-polymer dispersion material that can be used for storing optical holographic images, The obtained results show that the written grating-holograms are permanent, but are electrically switchable. Further, we studied the dynamical behavior and the temperature-dependence of the formed gratings. The gratings morphologies were also investigated using scanning electron microscopy (SEM). The results showed the thermal grating was competing with the grating due to photopolymerization. The former dominated in the initial period, Later, it was offset or quenched by the photopolymerization effect which eventually dominated and determined the characteristics of the final gratings whose diffraction efficiencies were found to have a good correlation with their SEM images.

Original languageEnglish
Pages (from-to)365-381
Number of pages17
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume321
DOIs
Publication statusPublished - 1998 Jan 1

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Holographic gratings
Photopolymerization
Liquid crystal polymers
Diffraction gratings
liquid crystals
gratings
Scanning electron microscopy
Diffraction efficiency
polymers
Holograms
Economics
scanning electron microscopy
gratings (spectra)
economics
Temperature
temperature dependence
Hot Temperature
liquid crystal polymer

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

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abstract = "We have developed an economic liquid crystal-polymer dispersion material that can be used for storing optical holographic images, The obtained results show that the written grating-holograms are permanent, but are electrically switchable. Further, we studied the dynamical behavior and the temperature-dependence of the formed gratings. The gratings morphologies were also investigated using scanning electron microscopy (SEM). The results showed the thermal grating was competing with the grating due to photopolymerization. The former dominated in the initial period, Later, it was offset or quenched by the photopolymerization effect which eventually dominated and determined the characteristics of the final gratings whose diffraction efficiencies were found to have a good correlation with their SEM images.",
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Studies of holographic gratings formed in polymer-dispersed liquid crystal films and their dynamical behavior. / Fuh, Andy Ying Guey; Ko, Tsung Chin; Tsai, Ming Shann; Huang, Chi-Yen; Chien, Liang Chy.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 321, 01.01.1998, p. 365-381.

Research output: Contribution to journalArticle

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