caa a22 4500 445368217 CHVBK 20180317142937.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00340-010-4241-1 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4241-1 Bismuth valence states and emission centers in Mg-Al-silicate glass [Elektronische Daten] [B. Denker, B. Galagan, I. Shulman, S. Sverchkov, E. Dianov] Two Al-Mg-silicate glass sample sets with variable Bi2O3 content were prepared. One set was sintered by melting in an iridium crucible at 1850°C in nitrogen, the other—in alumina crucibles at 1550°C in air. Their absorption and emission properties were investigated and compared in the 200-1600nm spectral range. It was determined that the visible range extinctions values of high-temperature melted samples were almost two orders of magnitude higher than those of the low-temperature melted samples with the same doping level. The concentration dependences of the extinction values at 500, 700 and 800nm were nonlinear. The investigations allowed us to estimate the absolute concentrations of Bi3+ ions and NIR-emitting centers as well as the efficiency of the Bi3+ ions conversion into these centers. It was concluded that optical centers emitting at 1100 and 1300nm contain a pair of bismuth ions. Speculations about some possible structures of Bi dimer NIR-emitting centers were made. Springer-Verlag, 2010 Denker B. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut Galagan B. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut Shulman I. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut Sverchkov S. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut Dianov E. Fiber Optics Research Center of RAS, Vavilov str. 38, 119991, Moscow, Russia aut Applied Physics B Springer-Verlag 103/3(2011-06-01), 681-685 0946-2171 103:3<681 2011 103 340 https://doi.org/10.1007/s00340-010-4241-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4241-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Denker B. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Galagan B. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Shulman I. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Sverchkov S. A.M. Prokhorov General Physics Institute of RAS, Vavilov str. 38, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Dianov E. Fiber Optics Research Center of RAS, Vavilov str. 38, 119991, Moscow, Russia aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/3(2011-06-01), 681-685 0946-2171 103:3<681 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer