Optical memory with twisted nematic liquid crystal (TNLC) devices

Martín Pereda, José Antonio and Muriel Fernández, Miguel Ángel (1983). Optical memory with twisted nematic liquid crystal (TNLC) devices. In: "The Max Born Centenary Conference", 7-10 Sep 1982, Edinburgh, UK. ISBN 9780892524044.

Description

Title: Optical memory with twisted nematic liquid crystal (TNLC) devices
Author/s:
  • Martín Pereda, José Antonio
  • Muriel Fernández, Miguel Ángel
Item Type: Presentation at Congress or Conference (Article)
Event Title: The Max Born Centenary Conference
Event Dates: 7-10 Sep 1982
Event Location: Edinburgh, UK
Title of Book: The Max Born Centenary Conference
Date: 1983
ISBN: 9780892524044
Volume: 369
Subjects:
Freetext Keywords: Optical bistability, liquid crystals
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A design for obtaining memory in optical bistability with liquid crystals is reported. This design uses optical feedback on a twisted nematie liquid crystal ( TNLC ) through an optoelectronic system. A constant input light is the read-out and its value depends on the desired initial working point, usually at the bottom of the T(V) vs. V curve. Light levels depend on the feedback. An input light pulse change the working point to the top of the transmission curve. When this pulse vanishes, the working point remains at the upper part of the curve. Hence a memory function is obtained. Minimum pulse width needed was 1msec. ON-OPF ratio was 100:3.

More information

Item ID: 22183
DC Identifier: http://oa.upm.es/22183/
OAI Identifier: oai:oa.upm.es:22183
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 23 Jan 2014 16:47
Last Modified: 21 Apr 2016 13:55
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