NDLI: Electroluminescent device for temporary information storage

Content Provider	IEEE Xplore Digital Library
Author	Culp, J.W.
Copyright Year	1961
Description	Author affiliation: General Telephone & Electronics Laboratories, Inc., Bayside, New York (Culp, J.W.)
Abstract	An dectroluminescent element becomes polarized when it is pulsed with a direct voltage. That is, it has a memory of the pulse polarity. If the element is later pulsed with a voltage of the same polarity, it emits a flash of light. If instead the later pulse is of opposite polarity, then the light flash is substantially brighter. The polarization has a decay time up to several seconds. This capability of memorization and interrogation suggests that an electroluminescent element can be used for the temporary storage of information. To store a binary 1, the element is supplied with a write pulse of negative polarity. Interrogation is accomplished with a positive read pulse, and a gated photomultiplier responds to the light output. To store a 0, no negative pulse is supplied. Fast-decay electroluminescent phosphors were evaluated for memory device application. A particular phosphor gave a signal-to-noise ratio of 8 for a storage time of 20 millisec. and 10 for a storage time of 2 millisec. The readout time was 2 microsec. Experiments indicate that high storage density can be obtained in a crossed-grid electroluminescent pand having a non-linear resistance layer to eliminate crosstalk.
Starting Page	96
Ending Page	96
File Size	58364
Page Count	1
File Format	PDF
DOI	10.1109/IEDM.1961.187264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1961-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electroluminescent devices Electroluminescence Optical polarization Voltage Telephony Laboratories Phosphors Crosstalk
Content Type	Text
Resource Type	Article

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