Preparing single crystals of Li(Ho,Y,Er,Tm,Dy)F4 in HF atmospher

Details Preparing single crystals of Li(Ho,Y,Er,Tm,Dy)F4 in HF atmospher Preparing single crystals of Li(Ho,Y,Er,Tm,Dy)F4 in HF atmospher

1974-03-07

1976-05-25

Emery, Stephen J.

Chemistry of inorganic compounds

Rare earth compound

2523014H, 156617, 23305RE, 23273SP, B01J 1718, C09K 104, C01D 1102

Patent

active

039594424

ABSTRACT:
Single crystals, useful as laser emission compounds, having the formula ARF.sub.4 wherein A is potassium, sodium, or lithium, and R is holmium, yttrium, erbium, or dysprosium are prepared by a direct congruent melt crystal growth process that yields crystals exhibiting substantially superior physical and chemical characteristics compared to those grown by conventional methods.

REFERENCES:
patent: 3649552 (1972-03-01), Robinson
Harmer et al., J. Phy. Chem. Solids, 1969, Vol. 30, pp. 1483-1491.
Sharp et al., J. Appl. Phy., Vol. 44, No. 12, Dec, 1973, pp. 5399 to 5401.
Uhrin et al., Prep. and Sin. Crys. Growth of LiYF.sub.4 Laser Matls, AD-775211, Feb. 1974, pp. 15 to 30.
Chicklis, Devel of Multi Sentsitized KO:YLF Asp. Laser Material, Jan. 1973, AD-755-530, pp. 3 to 5.
Byer, Journal of Applied Physics, Vol. 41, No. 6, May, 1970, pp. 2320 to 2322.
Morrison, HDL-TR-1621, Studies Relative to Pass Laser Pumped by Nuclear Beta Rays, Oct. 1973, pp. 1 to 7.
Remski, IEEE Journal of Quantium Electronics, Apr. 1969, p. 214.

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