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US 8,541,324 B2Granted
Pergallous alkaline earth selenogermanate glasses
AssigneeCorning Incorporated
InventorsBruce Gardiner Aitken, Stephen Charles Currie
Life of this patent
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Abstract
IR-transmitting alkaline earth selenogallo- and/or selenoindo-germanate glasses that are capable of hosting luminescent rare earth dopants. The relatively high Ga and/or In content of most compositions serves to eliminate the typical clustering tendency of rare earth dopants in chalcogenide glasses, resulting in improved luminescence.
Claims19
A glass composition comprising in mole percent:
- 50 to 95 percent GeSe2;
- greater than 25 to less than 49.5 percent Ga2Se3, In2Se3, or a combination thereof;
- and
- 0.5 to less than 25 percent RSe, wherein R is an alkaline earth metal.
1 more element
Dependencies are inferred from the claim text.