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Proceedings Paper

Ultrafast nonlinearity in polydiacetylene microcrystals
Author(s): Raul Rangel-Rojo; Hiro Matsuda; Hitoshi Kasai; Hachiro Nakanishi
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Paper Abstract

We report the study of the dynamics of the third-order nonlinear optical response of polydiacetylene micro-crystals. The material employed is the polydiacetylene know as poly-DCHD, and the micro-crystals were 100 nm in diameter contained in an aqueous suspension. Experimental results for transient changes in transmission measured by a time-resolved excite-probe technique, conducted with 100 fs pulses at 850 nm from a mode-locked Ti:sapphire laser are presented. A discussion of the role of the excitonic origin of the nonlinear response is also presented. (Abstract only available)

Paper Details

Date Published: 19 November 2003
PDF: 1 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.525192
Show Author Affiliations
Raul Rangel-Rojo, CICESE (Mexico)
Hiro Matsuda, National Institute of Adv Industrial Sci. & Tech. (Japan)
Hitoshi Kasai, Tohoku Univ. (Japan)
Hachiro Nakanishi, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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