The nonlinear optical characterization of meso-substituted porphyrin dyes
Nine structurally related porphyrins are studied and it is shown how the material parameters that control the optical limiting depend on the molecular structure. Optical limiting measurements at 532 nm on the metal-free, zinc and lead analogues of tetraphenyl porphyrin (TPP), tetra(trimethylsilyethy...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2000
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| _version_ | 1826289141371895808 |
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| author | McEwan, K Bourhill, G Robertson, J Anderson, H |
| author_facet | McEwan, K Bourhill, G Robertson, J Anderson, H |
| author_sort | McEwan, K |
| collection | OXFORD |
| description | Nine structurally related porphyrins are studied and it is shown how the material parameters that control the optical limiting depend on the molecular structure. Optical limiting measurements at 532 nm on the metal-free, zinc and lead analogues of tetraphenyl porphyrin (TPP), tetra(trimethylsilyethynyl) porphyrin (TTMSAP) and tetra(4-n-butylphenylethynyl) porphyrin (TNBBAP) reveal a strong dependence on the metal atom and peripheral substitution. A double pump/cw probe technique is used to measure the material parameters that control the optical limiting and the results give a strong insight into how the molecular structure influences the individual parameters. These measurements revealed that one of the materials TTMSAP(Pb) has a σex/σgτ ratio of ∼45 at 532 nm, which is one of the largest values ever reported. Finally, broadband measurements with a picosecond white-light source show that the position and strength of the excited state absorption features also depend strongly on the porphyrin design. |
| first_indexed | 2024-03-07T02:24:22Z |
| format | Journal article |
| id | oxford-uuid:a51690b9-eeda-4e81-9cf6-79bff19cb437 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:24:22Z |
| publishDate | 2000 |
| record_format | dspace |
| spelling | oxford-uuid:a51690b9-eeda-4e81-9cf6-79bff19cb4372022-03-27T02:37:58ZThe nonlinear optical characterization of meso-substituted porphyrin dyesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a51690b9-eeda-4e81-9cf6-79bff19cb437EnglishSymplectic Elements at Oxford2000McEwan, KBourhill, GRobertson, JAnderson, HNine structurally related porphyrins are studied and it is shown how the material parameters that control the optical limiting depend on the molecular structure. Optical limiting measurements at 532 nm on the metal-free, zinc and lead analogues of tetraphenyl porphyrin (TPP), tetra(trimethylsilyethynyl) porphyrin (TTMSAP) and tetra(4-n-butylphenylethynyl) porphyrin (TNBBAP) reveal a strong dependence on the metal atom and peripheral substitution. A double pump/cw probe technique is used to measure the material parameters that control the optical limiting and the results give a strong insight into how the molecular structure influences the individual parameters. These measurements revealed that one of the materials TTMSAP(Pb) has a σex/σgτ ratio of ∼45 at 532 nm, which is one of the largest values ever reported. Finally, broadband measurements with a picosecond white-light source show that the position and strength of the excited state absorption features also depend strongly on the porphyrin design. |
| spellingShingle | McEwan, K Bourhill, G Robertson, J Anderson, H The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title | The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title_full | The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title_fullStr | The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title_full_unstemmed | The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title_short | The nonlinear optical characterization of meso-substituted porphyrin dyes |
| title_sort | nonlinear optical characterization of meso substituted porphyrin dyes |
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