Formation of holographic memory by recording of multi-context in liquid crystal composites

Author

Ogiwara, Akifumi ; Maekawa, Hikaru ; Watanabe, Manabu ; Moriwaki, Retsu

Author_Institution

Dept. of Electron. Eng., Kobe City Coll. of Technol., Kobe, Japan

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

1

Lastpage

2

Abstract

A holographic polymer-dispersed liquid crystal (HPDLC) memory to record multi-context information for an optically reconfigurable gate array is formed by a successive laser exposure in LC composites. The multi-context information is recorded at 9 regions isolated in HPDLC memory by a laser illumination system using the movable pinhole and photomask with the motorized stages. The configuration contexts corresponding to the various logical circuits are reconstructed by the independent laser illumination to the local regions in the HPDLC memory. The formation of volume grating structure in LC composites is investigated by SEM observation.

Keywords

composite materials; holography; logic circuits; polymer dispersed liquid crystals; scanning electron microscopy; SEM; holographic polymer-dispersed liquid crystal memory; laser exposure; laser illumination system; liquid crystal composites; logical circuits; multicontext information recording; optically reconfigurable gate array; photomask; volume grating structure; Arrays; Context; Holographic optical components; Holography; Laser beams; Optical device fabrication; Optical recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on

Conference_Location

Kyoto

Type

conf

DOI

10.1109/CLEOPR.2013.6600439

Filename

6600439