| Autor: |
Dubinina GG; Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, USA. dubinina@chem.ufl.edu, Price RS, Abboud KA, Wicks G, Wnuk P, Stepanenko Y, Drobizhev M, Rebane A, Schanze KS |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of the American Chemical Society [J Am Chem Soc] 2012 Nov 28; Vol. 134 (47), pp. 19346-9. Date of Electronic Publication: 2012 Nov 15. |
| DOI: |
10.1021/ja309393c |
| Abstrakt: |
The linear and nonlinear optical properties of a series of linear and cross-conjugated platinum(II) acetylide complexes that contain extended p-(phenylene vinylene) chromophores are reported. The complexes exhibit very high femtosecond two-photon absorption (2PA) cross section values (σ(2) up to 10,000 GM), as measured by nonlinear transmission (NLT) and two-photon excited fluorescence (2PEF) methods. The large 2PA cross sections span a broad range of wavelengths, 570-810 nm, and they overlap with the triplet excited state absorption. Spectral coincidence of high cross section 2PA and triplet absorption is a key feature giving rise to efficient dual-mode optical power limiting (OPL). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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