Optical spectroscopy of Tm3+ in organic matrices for hole-burning storage a

摘要

Abstract: The optical properties of four Tm$+3$PLU$/ chelates, specifically $beta@-diketone tris chelates of thulium, in a poly(methyl methacrylate) matrix are presented. Samples under investigation were the Tm$+3$PLU$/ complexes formed using thulium chloride (TmCl$-3$/ $DOT 6H$-2$/O) with thenoyltrifluoroacetylacetone (TTFA), 1,1,1-trifluoro-2,4- pentanedione (TFD), 1-phenyl-1,3-butanedione (PBD), and 1,3- diphenyl-1,3-propanedione (DBM) ligands. These materials are interesting from the point of view of potential applications for optical hole-burning frequency and time-domain storage and processing. Optical absorption, steady state and time-resolved photoluminescence, and spectral hole-burning at the transition between $+3$/H$-6$/(1) and $+3$/H$-4$/(1) crystal-field levels were studied at temperatures between 1.4 and 300 K. !20