Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Oracio Barbosa-García"'
Autor:
Mario Rodríguez, Oracio Barbosa-García, Ma. Eugenia Ochoa, José-Luis Maldonado, Rosa Santillan, Gabriel Ramos-Ortiz, Norberto Farfán, Oscar Domínguez, Marco-Antonio Meneses-Nava
Publikováno v:
Polyhedron. 43:194-200
Herein is reported the synthesis and X-ray diffraction analysis for three boron complexes (2a–2c) prepared from the reaction of bidentate ligands (1a–1c) and diphenylborinic acid. Chemical characterization for the borinates is completed with IR,
Autor:
Oracio Barbosa-García, Gabriel Ramos-Ortiz, Eduardo Arias, M. Olmos-López, Ivana Moggio, José-Luis Maldonado, Marco-Antonio Meneses-Nava
Publikováno v:
Optical Materials. 29:821-826
The influence of the buckminsterfullerene C60 on photocurrent generation and hole transport properties in polymer films of poly(styrene) (PS) doped with N,N′-bis-(3-tolyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (TPD), has been determined an
Autor:
M.V. Félix, Oracio Barbosa-García, R.A. Rodríguez-Rojas, J. Castañeda-Contreras, Marco-Antonio Meneses-Nava
Publikováno v:
Optical Materials. 29:38-42
Spectroscopic properties of erbium ions in SiO 2 -TiO 2 -Er 3+ powders are studied and the nature of the emissions discussed. A strong green luminescence and less intense red and blue emissions were observed in the samples when exciting at 490 nm, 53
Autor:
E De la Rosa-Cruz, S. Hinojosa, Oracio Barbosa-García, Gabriel Ramos-Ortiz, M. A. Meneses-Nava, José-Luis Maldonado
Publikováno v:
Optical Materials. 27:1839-1844
A poly-crystalline YAG matrix was obtained through the precipitation method; this matrix was single and co-doped with ytterbium and erbium ions, i.e., Yb:YAG, Er:YAG and Yb,Er:YAG. It is found that the measured luminescent properties are similar to t
Autor:
Marco-Antonio Meneses-Nava, J. F. Mosiño, J.L. Maldonado-Rivera, J. Castañeda-Contreras, Oracio Barbosa-García
Publikováno v:
Optical Materials. 27:301-305
The TiO2 content was changed from low to high concentration (5–70% molar) in binary erbium doped SiO2–TiO2 powder samples produced by the sol–gel method. Three pumping wavelengths 532, 979 and 1532 nm, were used to study the blue up-conversion
Publikováno v:
Optical Materials. 18:321-329
Spectroscopic properties of Nd3+ in barium fluoroborophosphate glassy matrix have been analyzed by fitting the experimental data with the standard Judd–Ofelt theory. Various spectroscopic parameters, viz. radiative transition probabilities, radiati
Autor:
Oracio Barbosa-García, A.A Silva-Moreno, Luis A. Diaz-Torres, M. A. Meneses Nava, Georges Boulon, F. Carrillo Romo
Publikováno v:
Optical Materials. 16:221-226
Two sets of experimental data of the chromium emission, at short and long times, for the non-radiative energy transfer processes in Cr, Nd:GSGG (Gd 3 Sc 2 Ga 3 O 12 ) are analyzed. In contrast to previous analysis, our modeling allows calculating the