| Literature DB >> 23134488 |
Galyna G Dubinina1, Randi S Price, Khalil A Abboud, Geoffrey Wicks, Pawel Wnuk, Yuriy Stepanenko, Mikhail Drobizhev, Aleksander Rebane, Kirk S Schanze.
Abstract
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).Entities:
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Year: 2012 PMID： 23134488 DOI： 10.1021/ja309393c
Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419