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 polymer-dispersed liquid crystal (HPDLC) grating are expected to provide polarization-controllable 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 ($T_{\mathrm{ni}}$) 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 $T_{\mathrm{ni}}$ 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 $T_{\mathrm{ni}}$ of LC.

© 2013 Optical Society of America

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

Akifumi Ogiwara, Minoru Watanabe, and Retsu Moriwaki
Opt. Lett. 38(7) 1158-1160 (2013)

Optical reconfiguration by anisotropic diffraction in holographic polymer-dispersed liquid crystal memory

Akifumi Ogiwara and Minoru Watanabe
Appl. Opt. 51(21) 5168-5177 (2012)

Holographic polymer-dispersed liquid crystal memory for optically reconfigurable gate array using subwavelength grating mask

Akifumi Ogiwara, Minoru Watanabe, Takayuki Mabuchi, and Fuminori Kobayashi
Appl. Opt. 50(34) 6369-6376 (2011)

Formation of holographic polymer-dispersed liquid crystal memory by angle-multiplexing recording for optically reconfigurable gate arrays

Akifumi Ogiwara and Minoru Watanabe
Appl. Opt. 54(36) 10623-10629 (2015)

Tolerance of holographic polymer-dispersed liquid crystal memory for gamma-ray irradiation

Akifumi Ogiwara, Minoru Watanabe, and Yoshizumi Ito
Appl. Opt. 56(16) 4854-4860 (2017)