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. 8 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7013761
- Patent Number(s):
- 4945514
- Application Number:
- PPN: US 7-200104
- Assignee:
- SNL; EDB-94-121041
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 31 May 1988
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; MEMORY DEVICES; DESIGN; OPTICAL COMPUTERS; OPTICAL EQUIPMENT; PLZT; COMPUTERS; EQUIPMENT; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONATES; ZIRCONIUM COMPOUNDS; 990200* - Mathematics & Computers
Citation Formats
Land, C E. Method of bistable optical information storage using antiferroelectric phase PLZT ceramics. United States: N. p., 1990.
Web.
Land, C E. Method of bistable optical information storage using antiferroelectric phase PLZT ceramics. United States.
Land, C E. Tue .
"Method of bistable optical information storage using antiferroelectric phase PLZT ceramics". United States.
@article{osti_7013761,
title = {Method of bistable optical information storage using antiferroelectric phase PLZT ceramics},
author = {Land, C 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. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {7}
}
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