Formation of temperature dependable holographic memory using holographic polymer-dispersed liquid crystal

Akifumi Ogiwara, Minoru Watanabe, Retsu Moriwaki

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Grating devices using photosensitive organic materials play an important role in the development of optical and optoelectronic systems. High diffraction efficiency and polarization dependence achieved in a holographic polymerdispersed liquid crystal (HPDLC) grating are expected to provide polarization controllable optical devices, such as the holographic memory for optically reconfigurable gate arrays (ORGAs). However, the optical property is affected by the thermal modulation around the transition temperature (T ni) that the liquid crystal (LC) changes from nematic to isotropic phases. The temperature dependence of the diffraction efficiency in HPDLC grating is discussed with two types of LC composites comprised of isotropic and LC diacrylate monomers. The holographic memory formed by the LC and LC diacrylate monomer performs precise reconstruction of the context information for ORGAs at high temperatures more than 150°C.

Original languageEnglish
Pages (from-to)1158-1160
Number of pages3
JournalOptics Letters
Volume38
Issue number7
DOIs
Publication statusPublished - Apr 1 2013
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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