ArticleThe Journal of chemical physics2009
One- and two-photon absorption of highly conjugated multiporphyrin systems in the two-photon Soret transition region.
Article in The Journal of chemical physics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Nonlinear two-photon pumped vortex lasing based on quasi-bound states in the continuum from perovskite metasurface.Science advances · 2023Article
- Panchromatic Absorbers Tethered for Bioconjugation or Surface Attachment.Molecules (Basel, Switzerland) · 2022Article
- Template-directed synthesis of linear porphyrin oligomers: classical, Vernier and mutual Vernier.Chemical science · 2017Article
- Large Hyperpolarizabilities at Telecommunication-Relevant Wavelengths in Donor-Acceptor-Donor Nonlinear Optical Chromophores.ACS central science · 2016Article
- Femtosecond pulse train shaping improves two-photon excited fluorescence measurements.Optics letters · 2014Article
- Amplified two-photon absorption in trans-A2B2-porphyrins bearing nitrophenylethynyl substituents.Chemphyschem : a European journal of chemical physics and physical chemistry · 2012Article
- Two-photon absorption properties of proquinoidal D-A-D and A-D-A quadrupolar chromophores.The journal of physical chemistry. A · 2011Article
- The roles of molecular structure and effective optical symmetry in evolving dipolar chromophoric building blocks to potent octopolar nonlinear optical chromophores.Journal of the American Chemical Society · 2011Article
- Photophysics of glycosylated derivatives of a chlorin, isobacteriochlorin and bacteriochlorin for photodynamic theragnostics: discovery of a two-photon-absorbing photosensitizer.Photochemistry and photobiologyArticle
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Authors and funding
4 authors.
Funding
Abstract
This study presents a detailed investigation of near-infrared one- and two-photon absorption (TPA) in a series of highly conjugated (porphinato)zinc(II) compounds. The chromophores interrogated include meso-to-meso ethyne-bridged (porphinato)zinc(II) oligomers (PZn(n) species), (porphinato)zinc(II)-spacer-(porphinato)zinc(II) (PZn-Sp-PZn) complexes, PZn(n) structures featuring terminal electron-releasing and -withdrawing substituents, related conjugated arrays in which electron-rich and -poor PZn units alternate, and benchmark PZn monomers. Broadband TPA cross-section measurements were performed ratiometrically using fluorescein as a reference. Superficially, the measurements indicate very large TPA cross-sections (up to approximately 10(4) GM; 1 GM = 1x10(-50) cm(4) s photon(-1)) in the two-photon Soret (or B-band) resonance region. However, a more careful analysis of fluorescence as a function of incident photon flux suggests that significant one-photon absorption is present in the same spectral region for all compounds in the series. TPA cross-sections are extracted for the first time for some of these compounds using a model that includes both one-photon absorption and TPA contributions. Resultant TPA cross-sections are approximately 10 GM. The findings suggest that large TPA cross-sections reported in the Soret resonance region of similar compounds might contain significant contributions from one-photon absorption processes.
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