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Title: Method of bistable optical information storage using antiferroelectric phase PLZT ceramics

Abstract

A method for bistable storage of binary optical information includes an antiferroelectric (AFE) lead lanthanum zirconate titanate (PLZT) layer having a stable antiferroelectric first phase and a ferroelectric (FE) second phase obtained by applying a switching electric field across the surface of the device. Optical information is stored by illuminating selected portions of the layer to photoactivate an FE to AFE transition in those portions. Erasure of the stored information is obtained by reapplying the switching field.

Inventors:
 [1]
  1. (2118 Gretta NE., Albuquerque, NM 87112)
Publication Date:
Research Org.:
AT & T CORP
OSTI Identifier:
867473
Patent Number(s):
US 4945514
Assignee:
Land, Cecil E. (2118 Gretta NE., Albuquerque, NM 87112) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; bistable; optical; information; storage; antiferroelectric; phase; plzt; ceramics; binary; afe; lead; lanthanum; zirconate; titanate; layer; stable; ferroelectric; obtained; applying; switching; electric; field; surface; device; stored; illuminating; selected; portions; photoactivate; transition; erasure; reapplying; zirconate titanate; electric field; selected portion; information storage; optical information; selected portions; stored information; lanthanum zirconate; lead lanthanum; plzt ceramics; bistable optical; binary optical; bistable storage; /365/359/

Citation Formats

Land, Cecil E. Method of bistable optical information storage using antiferroelectric phase PLZT ceramics. United States: N. p., 1990. Web.
Land, Cecil E. Method of bistable optical information storage using antiferroelectric phase PLZT ceramics. United States.
Land, Cecil E. Mon . "Method of bistable optical information storage using antiferroelectric phase PLZT ceramics". United States. https://www.osti.gov/servlets/purl/867473.
@article{osti_867473,
title = {Method of bistable optical information storage using antiferroelectric phase PLZT ceramics},
author = {Land, Cecil E.},
abstractNote = {A method for bistable storage of binary optical information includes an antiferroelectric (AFE) lead lanthanum zirconate titanate (PLZT) layer having a stable antiferroelectric first phase and a ferroelectric (FE) second phase obtained by applying a switching electric field across the surface of the device. Optical information is stored by illuminating selected portions of the layer to photoactivate an FE to AFE transition in those portions. Erasure of the stored information is obtained by reapplying the switching field.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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