Investigation of picosecond optical nonlinearity in porphyrin metal complexes derivatives

Porphyrin metal complex derivatives were experimentally studied using the Z-scan technique and the optical Kerr gate method with picosecond pulses at 532 nm. The sign and magnitude of the nonlinear refraction and nonlinear absorption were determined for a negatively charged meso-tetrakis( p-sulfonat...

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Bibliographic Details
Published in:Chemical physics letters 2000-03, Vol.318 (6), p.511-516
Main Authors: Bezerra, A.G., Borissevitch, I.E., de Araujo, R.E., Gomes, A.S.L., de Araújo, Cid B.
Format: Article
Language:English
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Summary:Porphyrin metal complex derivatives were experimentally studied using the Z-scan technique and the optical Kerr gate method with picosecond pulses at 532 nm. The sign and magnitude of the nonlinear refraction and nonlinear absorption were determined for a negatively charged meso-tetrakis( p-sulfonatophenyl)porphyrin (TPPS 4) and a positively charged meso-tetrakis(4- N-methyl-pyridiniumyl)porphyrin (TMPyP) in their free-base forms and their Fe(III) and Mn(III) complexes. The results were phenomenologically understood and the origin of the nonlinearity was inferred.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(00)00076-2