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Dyelike lasers for the 0.9–2-μm region using F2+ centers in alkali halides

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Abstract

Optically pumped, cw laser action with F2+ centers in the alkali halides is reported. With the host NaF, the laser was continuously tunable over the range 0.885 ≲ λ ≲ 1.00 μm, and pump power near threshold was ∼40 mW at band center. The required high density of F2+ centers was created by a simple process involving radiation damage by a 1-MeV e beam. With the F2+ in other hosts as well, it should be possible to cover the entire range, 0.9 ≲ λ ≲ 2μm.

© 1977 Optical Society of America

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