Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Izilda Márcia Ranieri"'
Publikováno v:
Exacta, Vol 4, Iss 1, Pp 185-190 (2006)
In this work, the deactivation energy transfer mechanisms of 4I13/2 of Er3+ and 5I7 of Ho3+ levels in crystals of LiYF4 (YLF) co-doped with Nd3+, Tb3+ and Eu3+ are studied. It was determined the best combination with deactivator ions, capable to maxi
Autor:
André Felipe Henriques Librantz, Luiz Vicente Gomes Tarelho, Laércio Gomes, Izilda Márcia Ranieri
Publikováno v:
Exacta, Vol 4, Iss 1, Pp 179-183 (2006)
Nd3+ ultraviolet (UV) fluorescence induced by multiphotonic laser excitations was studied in doped Nd:YLiF4 (YLF) and Nd:LuLiF4 (LLF) crystals by using the time resolved spectroscopy technique. The UV luminescences are due to transitions between the
Autor:
André Felipe Henriques Librantz, Laércio Gomes, Luiz Vicente Gomes Tarelho, Izilda Márcia Ranieri
Publikováno v:
Exacta, Vol 4, Iss 1, Pp 123-128 (2006)
We observed ultraviolet (UV) luminescence from 4f25d and 4f3 configuration in Nd-doped YLiF4 (YLF) and LuLiF4 (LLF) crystals induced by multiphotonic excitation of the three photons (532 nanometers [nm]). The LLF lattice is more compact than the YLF
Publikováno v:
Exacta, Vol 4, Iss 1, Pp 129-134 (2006)
In this work, we investigated the up-conversion processes in LiYF4 (YLF) crystals doped with 1 mol% of Er3+ and containing 50 mol% of Er3+. The up-conversion processes include the excited state absorption (ESA) of pumping radiation process and the en
Autor:
Lilia Coronato Courrol, Oscar Martinez, Ricardo Elgul Samad, Laércio Gomes, Izilda Márcia Ranieri, Sonia Licia Baldochi, Anderson Zanardi de Freitas, Nilson Dias Vieira Junior, Niklaus Ursus Wetter, Jaime Frejlich
Publikováno v:
ResearcherID
We report properties of the spatial and spectral distribution of color centers produced in LiF single crystals by ultrashort high intensity laser pulses (60 fs, 10 GW) using confocal spectral microscopy and atomic force microscopy. We could identify
Autor:
Rodrigo Uchida Ichikawa, Horacio Marconi da Silva Matias Dantas Linhares, Andre Santos Barros Silva, Maria Ines Teixeira, Izilda Marcia Ranieri, Xavier Turrillas, Luis Gallego Martinez
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 7, Iss 2A (2019)
In this work, the structure and microstructure of Nd:KY3F10 nanoparticles was probed using X-ray synchrotron diffraction analysis. Rietveld refinement was applied to obtain cell parameters, atomic positions and atomic displacement factors to be compa
Externí odkaz:
https://doaj.org/article/4a5200d2e25a4e47a77261d273dd25ff