Polymer/(liquid crystal) composite systems for novel electro-optical effects

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)

Abstract

Aggregation states and electro-optical effects based on light scattering have been investigated for polymer (liquid crystal) composite films. The composite film was prepared by a solvent- evaporation method. Since a continuous liquid crystalline domain is embedded in a three-dimensional spongy network of polymer matrix, the liquid crystalline material is self-supported in the composite film in spite of its very low viscosity. The composite film composed of poly(methyl methacrylate) and a nematic LC(E44) with positive dielectric-anisotropy exhibited remarkable and reversible light scattering-light transmission switching under the modulation of an ac electric field. A light scattering state was dependent on optical heterogeneities such as a spatial distribution of nematic directors and/or mismatching in refractive indices of the components. Reversible and bistable electro-optical effects were also recognized for a smectic phase of a binary composite system composed of liquid crystalline polymer (LCP) and nematic LC. A light-addressed optical information storage of the LCP/nematic LC/(photoresponsive molecule) ternary composite membrane has also been demonstrated.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages20-31
Number of pages12
Volume1665
ISBN (Print)0819408190
Publication statusPublished - 1992
EventProceedings of the Conference on Liquid Crystal Materials, Devices, and Applications - San Jose, CA, USA
Duration: Feb 11 1992Feb 13 1992

Other

OtherProceedings of the Conference on Liquid Crystal Materials, Devices, and Applications
CitySan Jose, CA, USA
Period2/11/922/13/92

Fingerprint

electro-optical effect
Liquid crystal polymers
Composite films
Electrooptical effects
Large scale systems
liquid crystals
Light scattering
composite materials
polymers
light scattering
liquids
Crystalline materials
Composite membranes
Liquids
Light transmission
Polymer matrix
Polymethyl methacrylates
Spatial distribution
Refractive index
Evaporation

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kajiyama, T., Kikuchi, H., & Takahara, A. (1992). Polymer/(liquid crystal) composite systems for novel electro-optical effects. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1665, pp. 20-31). Publ by Society of Photo-Optical Instrumentation Engineers.

Polymer/(liquid crystal) composite systems for novel electro-optical effects. / Kajiyama, Tisato; Kikuchi, Hirotsugu; Takahara, Atsushi.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1665 Publ by Society of Photo-Optical Instrumentation Engineers, 1992. p. 20-31.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kajiyama, T, Kikuchi, H & Takahara, A 1992, Polymer/(liquid crystal) composite systems for novel electro-optical effects. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 1665, Publ by Society of Photo-Optical Instrumentation Engineers, pp. 20-31, Proceedings of the Conference on Liquid Crystal Materials, Devices, and Applications, San Jose, CA, USA, 2/11/92.
Kajiyama T, Kikuchi H, Takahara A. Polymer/(liquid crystal) composite systems for novel electro-optical effects. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1665. Publ by Society of Photo-Optical Instrumentation Engineers. 1992. p. 20-31
Kajiyama, Tisato ; Kikuchi, Hirotsugu ; Takahara, Atsushi. / Polymer/(liquid crystal) composite systems for novel electro-optical effects. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1665 Publ by Society of Photo-Optical Instrumentation Engineers, 1992. pp. 20-31
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