De Boni, L.Constantino, CJLMisoguti, L.Aroca, R. F.Zilio, S. C.Mendonca, C. R.2014-05-202014-05-202003-04-14Chemical Physics Letters. Amsterdam: Elsevier B.V., v. 371, n. 5-6, p. 744-749, 2003.0009-2614http://hdl.handle.net/11449/6790This work reports on the two-photon absorption (2PA) cross-section for bis (n-butylimido) perylene (BuPTCD), bis (benzimidazo) perylene (AzoPTCD), bis (benzimidazo) thioperylene (Monothio BZP), bis (phenethylimido) perylene (PhPTCD), bis (benzylimido) perylene (BePTCD) and n-pentylimido-benzimidazo perylene (PAzoPTCD) solutions measured using the Z-scan technique with femtosecond laser pulses at 775 nm. All perylene derivatives studied present large 2PA cross-sections, only comparable to the best ones reported in the literature. The experimental 2PA cross-sections obtained for each PTCD compound are in good agreement with a simplified sum-over-state calculation. The results of the present work indicates perylene derivatives as promising materials for two-photon applications. (C) 2003 Elsevier B.V. B.V. All rights reserved.744-749engArtigo10.1016/S0009-2614(03)00359-2WOS:000182103200036Acesso restrito