18 August 2005 Time-resolved spectroscopic investigation of the mechanism of enhancement of two-photon absorption cross-sections in organic dendrimers
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Abstract
Investigations of the enhancement process in two-photon absorption organic dendrimers are presented in order to give further details of the mechanism of enhancement. Organic dendrimers based on the branched octupolar trimer building block molecule are studied by time-resolved fluorescence, transient absorption, and three-pulse photon echo peak shift measurements. The time resolved measurements suggest that the fundamental (spectroscopic) unit of excitation in these dendrimers is larger than the trimer building block molecule. These results suggest that it is possible to build dendrimers with enhanced two-photon absorption properties beyond the trimer molecule situation.
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Theodore Goodson III, Theodore Goodson III, Mireille Blanchard-Desce, Mireille Blanchard-Desce, "Time-resolved spectroscopic investigation of the mechanism of enhancement of two-photon absorption cross-sections in organic dendrimers", Proc. SPIE 5935, Linear and Nonlinear Optics of Organic Materials V, 59350H (18 August 2005); doi: 10.1117/12.638180; https://doi.org/10.1117/12.638180
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