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Proceedings Paper

Nonlinear optical properties of porphyrin and chlorophyll dimers studied by degenerated four-wave mixing
Author(s): Lin X.Q. Chen
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Paper Abstract

As one of the important elements in natural and artificial electron transfer and energy transfer processes, porphyrin and its derivatives have received much attention in photoelectronics and photoelectronic materials. As our first attempt to relate the (pi) -(pi) electronic couplings between porphyrin macrocycles to apparent third order nonlinear susceptibilities, we measured (chi) (3) for several porphyrin and chlorophyll a derivatives, including dimers with different configurations. Our preliminary results show that the dimers have enhanced (chi) (3) compared to those of the monomer. This enhancement is related to the relative orientations between the two macrocycles in the dimers. The parallel dimers with close face- to-face distances seem to have the highest enhancement in (chi) (3). More model compounds and related theoretical works are in progress before reaching a final conclusion.

Paper Details

Date Published: 23 July 1993
PDF: 5 pages
Proc. SPIE 1852, Nonlinear Optical Properties of Advanced Materials, (23 July 1993); doi: 10.1117/12.148437
Show Author Affiliations
Lin X.Q. Chen, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 1852:
Nonlinear Optical Properties of Advanced Materials
Shahab Etemad, Editor(s)

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