23 July 1993 Nonlinear optical properties of porphyrin and chlorophyll dimers studied by degenerated four-wave mixing
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Proceedings Volume 1852, Nonlinear Optical Properties of Advanced Materials; (1993) https://doi.org/10.1117/12.148437
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lin X.Q. Chen, Lin X.Q. Chen, } "Nonlinear optical properties of porphyrin and chlorophyll dimers studied by degenerated four-wave mixing", Proc. SPIE 1852, Nonlinear Optical Properties of Advanced Materials, (23 July 1993); doi: 10.1117/12.148437; https://doi.org/10.1117/12.148437
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