Oxide phosphorescent glass capable of exhibiting a long lasting

Details Oxide phosphorescent glass capable of exhibiting a long lasting Oxide phosphorescent glass capable of exhibiting a long lasting

1998-12-16

2000-09-26

Koslow, C. Melissa

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

2523014R, 501 64, 501 65, 501 67, 501 72, 501 78, 501 79, C09K 1100, C03C 412

Patent

active

061238724

ABSTRACT:
The present invention provides an oxide glass capable of exhibiting a long lasting afterglow and photostimulated phosphorescence, whereby energy can be accumulated by radiation excitation, for example, by .gamma.-rays, X-rays, UV-rays, etc., light emission can be continued for a long time even after stopping the excitation. Furthermore, the long lasting afterglow and photostimulated luminescence oxide glass can be used not only as a phosphorescent material for night illumination or night signal, but also as a material for confirming an infrared laser or controlling an optical axis because of exhibiting photostimulated luminescence by irradiation of infrared rays or visible rays. In addition, this glass is useful for recording or reproducing of .gamma.-rays, X-rays or UV-rays images. This glass material is represented, in term of atoms for making up the glass, by the following chemical composition (mol %):

REFERENCES:
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Rueter D et al., "Highly luminescent Euor Tbdoped and Zn0sensitized optical fibers drawn from silicon compatible sealing glass", Appl Phys Lett; Applied Physics Letters Aug. 12, 1996 American Inst of Physics, Woodbury, Ny, USA, vol. 69, No. 7, Aug. 12, 1996, pp. 892-894.
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