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

Theodore G. Goodson III

doi:10.1117/12.557672

15 October 2004 Investigations of the mechanism of enhancement in novel two-photon absorption branched macromolecules

Theodore G. Goodson III

Proceedings Volume 5517, Linear and Nonlinear Optics of Organic Materials IV; (2004) https://doi.org/10.1117/12.557672
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

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.

Citation Download Citation

Theodore G. Goodson III "Investigations of the mechanism of enhancement in novel two-photon absorption branched macromolecules", Proc. SPIE 5517, Linear and Nonlinear Optics of Organic Materials IV, (15 October 2004); https://doi.org/10.1117/12.557672

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