TITLE

An all-optical picosecond switch in polydiacetylene

AUTHOR(S)
Abdeldayem, Hossin; Frazier, Donald O.; Paley, Mark S.
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/17/2003, Vol. 82 Issue 7, p1120
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A polydiacetylene derivative of 2-methyl-4-nitroaniline (PDAMNA) showed a picosecond switching property. This phenomenon was demonstrated by waveguiding a cw He-Ne laser collinearly with a mode-locked picosecond Nd:YAG laser at 532 nm through a hollow fiber coated on the inside with a thin film of PDAMNA. The Z-scan investigations of PDAMNA thin films revealed that the PDAMNA system is a three-level system and the switching is caused by excited state absorption of the He-Ne beam.
ACCESSION #
9070273

 

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