Z-scan study of nonlinear absorption in novel lanthanide bis-phthalocyanines

Autor:	Larisa G. Tomilova, Alexey B. Karpo, Victor E. Pushkarev, V. I. Krasovskii
Rok vydání:	2012
Předmět:	Lanthanide Nonlinear absorption Analytical chemistry General Physics and Astronomy Rate equation Laser law.invention chemistry.chemical_compound chemistry law Transmittance Z-scan technique Physical and Theoretical Chemistry Triplet state Tetrahydrofuran
Zdroj:	Chemical Physics Letters. 554:155-158
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2012.10.036
Popis:	We report our results on the nonlinear absorption of novel sandwich lanthanide(III) double-decker complexes BuPc2Ln (BuPc = 2,3,9,10,16,17,23,24-octabutyl-phthalocyaninate; Ln = Eu, Dy, Er, Lu) studied in tetrahydrofuran (THF) solution using open aperture z-scan technique with 350 ps laser pulses at 532 nm. All the compounds exhibit reverse saturable (RSA) absorption. With approaching to the focus a weak saturation of absorption was observed, while at the focus a strong decrease in transmittance took place. Employing the rate equations formalism we demonstrate RSA being mainly contributed by the triplet state absorption.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f241a32c54052555eec34f5a5b51197 https://doi.org/10.1016/j.cplett.2012.10.036 Zobrazit plný text záznamu Full Text from ScienceDirect