Sensitized laser glass

Details Sensitized laser glass Sensitized laser glass

1985-03-22

1988-09-13

Miller, Edward A.

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

501 45, 501 48, C03C 316

Patent

active

047708115

ABSTRACT:
A sensitized laser glass which includes a primary lasing dopant and auxiliary dopants which absorb in regions of the flashlamp emission spectrum away from the absorption bans of the primary dopant and transfer the energy absorbed to the primary dopant, thus improving the efficiency and sensitivity of the laser glass. The auxiliary dopant comprises the combination of cerium and chromium as Ce.sub.2 O.sub.3 and Cr.sub.2 O.sub.3 and the primary dopant is a rare earth metal, preferably neodymium or erbium as Nd.sub.2 O.sub.3 or Er.sub.2 O.sub.3. Th auxiliary dopant consists essentially of 0.1 to 5% by weight Ce.sub.2 O.sub.3 and 0.025 to 0.1% by weight Cr.sub.2 O.sub.3, however the preferred concentration of the auxiliary dopant is 2 to 4% by weight Ce.sub.2 O.sub.3 plus 0.03 to 0.07% by weight Cr.sub.2 O.sub.3. The experimental data establishes that such auxiliary dopants are particularly suitable for phosphate laser glasses.

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Edwards et al, J. Phys. D: Appl. Phys., 12, 187-194 (1979).
Glass et al, "Laser Program Around Report-1975", pp. 201-204, UCRL-50021-35, L.L.L.
Coyle, "Laser Program Annual Report-1976", pp. 2:263-2:266 & 2:274, UCRL-50021-76, Lawrence Livermor Laboratory.
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