Solid state laser and material

Details Solid state laser and material Solid state laser and material

1979-11-19

1981-11-17

Sikes, William L.

Oscillators

Molecular or particle resonant type

H01S 314

Patent

active

043014267

ABSTRACT:
Broadly tunable, c.w. laser action in the ir(infrared) spectral region is obtained from (F.sub.2.sup.+).sub.A color centers in an alkali halide crystal having F.sub.A, F.sub.B, F.sub.A ', F.sub.B ' (F.sub.2).sub.A and (F.sub.2.sup.+).sub.A color centers in a dynamic equilibrium. The laser material is prepared by additively coloring an alkali halide crystal, exposing the colored crystal to light in the high-energy edge (i.e., between 450-300 nm) of the F-center absortion range at a temperature from about 253K to about 300K, cooling the crystal to a temperature not greater than 100K, and re-exposing the crystal to the same light to create a dynamic equilibrium state in which (F.sub.2.sup.+).sub.A centers are present.

REFERENCES:
"Broadly Tunable Lasers Using Color Centers", by Mollenauer et al., Jour. p. Phys., vol. 46, No. 7, Jul. '75.
"Broadly Tunable Laser Using Color Centers", by Mollenauer, Proc. of the 2nd Int. Conf. on Laser Spectros, (23-27 Jun. '75), pp. 227-238.
"Tunable CW Laser Operation in F.sub.B (11) Type Color Center Crystals", by Litfin et al., App. Phys. Lett., vol. 31, No. 6, (Sep. '77).
"A Broadly Tunable CW Laser Using Color Centers", by Mollenauer et al., App. Phys. Lett., vol. 24, No. 8, Apr. '74.

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