Chemistry of inorganic compounds – Rare earth compound
Patent
1996-08-23
1998-05-05
Bos, Steven
Chemistry of inorganic compounds
Rare earth compound
2523014H, 501151, 501152, 501123, 423464, C01G 5700, C30B 900
Patent
active
057469911
ABSTRACT:
A composition for growing a laser crystal is represented by the formula of F.sub.6+n where n is within a range from 10.sup.-5 to 0.1, each of p and q is within a range from 0 to 0.6, a total of p and q is within a range from 0.001 to 0.6, .alpha. is at least one member selected from the group consisting of Ca, Sr, Ba and Na, .beta. is at least one member selected from the group consisting of Al, Cr, Ni, Co and Fe, and R is a rare-earth element. The composition enables the distribution coefficient of rare-earth element to get closer to 1 and thus enables the laser crystal to have a high and uniform concentration of rare-earth element and to have a large size.
REFERENCES:
patent: 3649552 (1972-03-01), Robinson et al.
patent: 3655332 (1972-04-01), Smith, Jr.
patent: 5478498 (1995-12-01), Kodama et al.
C.D. Marshall et al. "Ultraviolet Laser Emission Properties of Ce.sup.3+ -doped LiSrAlF.sub.6 And LiCaAlF.sub.6 ", J.Opt.Soc.Am.B/vol. 11, No. 10 1994, pp. 2054-2065, Oct.
Bos Steven
Central Glass Company Limited
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