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Proceedings Paper

Polydiacetylene as an all-optical picosecond switch
Author(s): Hossin Ahmed Abdeldayem; Donald O. Frazier; Mark Steven Paley
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Paper Abstract

Polydiacetylene derivative of 2-methyl-4-nitroaniline (PDAMNA) shows a picosecond switching property, which illustrated a partial all-optical picosecond NAND logic gate. The switching phenomenon was demonstrated by waveguiding two collinear beams at 633 nm and 532 nm through a hollow fiber of 50 micrometers diameter, coated from inside with a thin film of PDAMNA. A Z-scan investigation of a PDAMNA thin film on quartz substrate revealed that the switching effect was attributed to an excited state absorption in the systems. The studies also showed that the polymer suffers a photo-oxidation beyond an intensity level of 2.9x106 w/cm2. The photo-oxidized film has different physical properties that are different from the original film before oxidation. The lifetime of both excited states before and after oxidation as well as their absorption coefficients were estimated by fitting a three level system model to the experimental results.

Paper Details

Date Published: 13 November 2001
PDF: 8 pages
Proc. SPIE 4458, Solar and Switching Materials, (13 November 2001); doi: 10.1117/12.448255
Show Author Affiliations
Hossin Ahmed Abdeldayem, Universities Space Research Association and NASA Marshall Space Flight Ctr. (United States)
Donald O. Frazier, NASA Marshall Space Flight Ctr. (United States)
Mark Steven Paley, Universities Space Research Association and NASA Marshall Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 4458:
Solar and Switching Materials
Carl M. Lampert; Claes-Goran Granqvist; Keith L. Lewis; Carl M. Lampert; Claes-Goeran Granqvist; Keith L. Lewis, Editor(s)

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