Temperature dependence of anisotropic diffraction in holographic polymer-dispersed liquid crystal memory

Akifumi Ogiwara, Minoru Watanabe, Retsu Moriwaki

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


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 polymer-dispersed liquid crystal (HPDLC) grating are expected to provide polarizationcontrollable optical devices, such as a holographic memory for optically reconfigurable gate arrays (ORGAs). However, the optical property is affected by the thermal modulation around the transition temperature (Tni) where the liquid crystal (LC) changes from nematic to isotropic phases. The temperature dependence of the diffraction efficiency in HPDLC grating is investigated using four types of LC composites comprised of LCs and monomers having different physical properties such as Tni and anisotropic refractive indices. The holographic memory formed by the LC with low anisotropic refractive index and LC diacrylate monomer implements optical reconfiguration for ORGAs at a high temperature beyond Tni of LC.

Original languageEnglish
Pages (from-to)6529-6536
Number of pages8
JournalApplied Optics
Issue number26
Publication statusPublished - Sept 10 2013
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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