Structure-optical property relationships of porphyrins

Weigie Su; Thomas M. Cooper; Kiet Nguyen; Mark C. Brant; Donna M. Brandelik; Daniel G. McLean

doi:10.1117/12.326881

12 October 1998 Structure-optical property relationships of porphyrins

Weigie Su, Thomas M. Cooper, Kiet Nguyen, Mark C. Brant, Donna M. Brandelik, Daniel G. McLean

Proceedings Volume 3472, Nonlinear Optical Liquids for Power Limiting and Imaging; (1998) https://doi.org/10.1117/12.326881
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Porphyrins are attractive compounds for optical applications. We have been investigating the relationship between molecular structure and optical properties of a number of porphyrin compounds. Structural variations explored include insertion of metal ions, extension of conjugation, halogenation and alkylation either at the pyrrole position or the meso-aryl groups. The characterization of these chromophores includes measurement of UV/Vis, fluorescence and fluorescence lifetimes. Furthermore, we have investigated their nonlinear absorption, excitation dynamics. The significant factors influencing limiting behavior appear to be the heavy atom effect, electron donating and withdrawing substituents conformation distortion and changes in conjugation. Detailed understanding will be gained from measurements of photophysical parameters underlying limiting behavior.

Citation Download Citation

Weigie Su, Thomas M. Cooper, Kiet Nguyen, Mark C. Brant, Donna M. Brandelik, and Daniel G. McLean "Structure-optical property relationships of porphyrins", Proc. SPIE 3472, Nonlinear Optical Liquids for Power Limiting and Imaging, (12 October 1998); https://doi.org/10.1117/12.326881

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