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Proceedings Paper

Investigations of the mechanism of enhancement in novel two-photon absorption branched macromolecules
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Paper Abstract

The nonlinear optical and excited state dynamics of a branched octupolar molecule (tris-4,4’,4”-(4- nitrophenilethynyl)triphenylamine(T-NPTPA)) with charge transfer character is investigated by combining measurements of two-photon absorption, time-resolved fluorescence, transient absorption, and three-pulse photon echo peak shift. The data are compared with those obtained for the linear molecule dimethylnitroaminotolane (DMNAT) representing a linear building block of the octupolar system. The purpose of this investigation is to understand the mechanism of the enhanced nonlinear optical properties of the trimer system relative to their linear analogs.

Paper Details

Date Published: 15 October 2004
PDF: 7 pages
Proc. SPIE 5517, Linear and Nonlinear Optics of Organic Materials IV, (15 October 2004); doi: 10.1117/12.557672
Show Author Affiliations
Theodore G. Goodson III, Wayne State Univ. (United States)

Published in SPIE Proceedings Vol. 5517:
Linear and Nonlinear Optics of Organic Materials IV
Robert A. Norwood; Manfred Eich; Mark G. Kuzyk, Editor(s)

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