TY - GEN
T1 - Nonlinear optical properties of porphyrin and chlorophyll dimers studied by degenerated four-wave mixing
AU - Chen, Lin X.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - 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 π-π electronic couplings between porphyrin macrocycles to apparent third order nonlinear susceptibilities, we measured χ(3) for several porphyrin and chlorophyll a derivatives, including dimers with different configurations. Our preliminary results show that the dimers have enhanced χ(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 χ(3). More model compounds and related theoretical works are in progress before reaching a final conclusion.
AB - 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 π-π electronic couplings between porphyrin macrocycles to apparent third order nonlinear susceptibilities, we measured χ(3) for several porphyrin and chlorophyll a derivatives, including dimers with different configurations. Our preliminary results show that the dimers have enhanced χ(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 χ(3). More model compounds and related theoretical works are in progress before reaching a final conclusion.
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M3 - Conference contribution
AN - SCOPUS:0027274340
SN - 0819410780
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 162
EP - 166
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Publ by Society of Photo-Optical Instrumentation Engineers
T2 - Nonlinear Optical Properties of Advanced Materials
Y2 - 20 January 1993 through 21 January 1993
ER -