Schott Ag

Bam Bundesanstalt Fuer Materialforschung Und-pruefung

Doris Ehrt

Uwe Kolberg

Joseph S Hayden

Magdalena Winkler-Trudewig

Axel Engel

Monika Gierke

Ute Resch-Genger

Katrin Hoffmann

Axel Curdt

Michael Stelzl

Rainer Haspel

Guenther Kron

Günther Kron

A core glass and a fiber-optic light guide made from it and a cladding glass are described. The core glass is in the alkali-zinc-silicate system and contains, in Mol % on an oxide basis: 54.5-65, SiO; 18.5-30, ZnO; 8-20, &#x3a3; alkali metal oxides; 0.5-3, LaO; 2-5, ZrO; 0.02-5, HfO; 2.02-5, &#x3a3; ZrO+HfO; 0.4-6, BaO; 0-6, SrO; 0-2, MgO; 0-2, CaO; 0.4-6, &#x3a3; alkaline earth metal oxides; 0.5-3, LiO, but no more LiO than 25% of the &#x3a3; alkali metal oxides; &#x3e;58.5, &#x3a3; SiO+ZrO+HfO. A molar ratio of NaO/KO is from 1/1.1 to 1/0.3. A molar ratio of ZnO to BaO is greater than 3.5.

Core glass in the alkali-zinc-silicate glass system for an fiber-optic light guide and fiber-optic light guide made with said core glass

The invention discloses a standard for referencing luminescence signals, having an optically transparent base material comprising a lanthanum phosphate glass, a fluorophosphate glass, a fluor-crown glass, a lanthanum glass, a glass-ceramic formed therefrom or a lithium aluminosilicate glass-ceramic, the base material including a bulk doping with at least one constituent which is luminescent and comprises at least one rare earth and/or a nonferrous metal, in particular cobalt, chromium or manganese.

Standard for referencing luminescence signals

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Jena, Germany

Doris Ehrt