ISSN:
1057-9257
Keywords:
Spiropyran
;
J-aggregates
;
H-aggregates
;
LB film
;
non-linear photochromism logic ‘AND’ function
;
optical neural network system
;
Hopfield model
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Spiropyran SP1822 J-aggregate LB films show a non-linear photochromic response with a threshold against the incident light intensity of a CW dye laser. Using two laser beams operating below the threshold level intensity, the logic ‘AND’ function was found to be optically stored as an overlapping region of two incident patterns. We proposed the adoption of an LB film of spiropyran J-aggregates to store the memory matrix Tijkl as an overlapping region of learning input pattern Vij and multi-image input pattern Vkl in order to construct an optical neural network system based on Hopfield model.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/amo.860050107
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