Laser-addressing rewritable optical information storage of (liquid crystalline side chain copolymer/liquid crystals/photo-responsive molecule) ternary composite systems

Hirokazu Yamane, Hirotsugu Kikuchi, Tisato Kajiyama

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A laser-addressing rewritable optical information storage for (liquid crystalline side chain copolymer: LCcoP/low molecular weight nematic liquid crystals: nematic LCs/photo-responsive molecule: PM) ternary composite systems in a smectic state was investigated on the basis of a reversible and bistable electro-optical switching driven by ac electric fields with two different frequencies. In order to improve the response speed for the electro-optical switching for the ternary composite system, a LCcoP with the mesogenic side chain fraction of 52.5 mol% was synthesized. The ternary composite system with the LCcoP fraction of 36 wt% showed a smectic state over a wide range near room temperature. High speed reversible and bistable electro-optical switching (approx. 100 ms) under an appropriate electric field, and a stable memory effect (approx. y) were demonstrated upon irradiation of UV light of 355 nm by using a YAG laser for the ternary composite systems in a smectic phase at room temperature.

Original languageEnglish
Pages (from-to)4777-4785
Number of pages9
Journalpolymer
Volume40
Issue number17
DOIs
Publication statusPublished - Jan 1 1999

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Liquid Crystals
Liquid crystals
Large scale systems
Copolymers
Crystalline materials
Data storage equipment
Molecules
Lasers
Liquids
Electric fields
Nematic liquid crystals
Ultraviolet radiation
Molecular weight
Irradiation
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Laser-addressing rewritable optical information storage of (liquid crystalline side chain copolymer/liquid crystals/photo-responsive molecule) ternary composite systems. / Yamane, Hirokazu; Kikuchi, Hirotsugu; Kajiyama, Tisato.

In: polymer, Vol. 40, No. 17, 01.01.1999, p. 4777-4785.

Research output: Contribution to journalArticle

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