Abstract

(F₂⁺)_A centers can be produced in additively colored KI:Li crystals provided that the material is colored in a nitrogen-free atmosphere. The optical properties of (F₂⁺)_A centers in both additively colored KI:Li and KBr:Li are identical with those reported for electron-beam-colored materials. Formation of (F₂⁺)_A centers in additively colored KI:Li provides the basis for achieving a stable color-center laser material tunable from 2 to 4 μm.

© 1986 Optical Society of America

Laser action with (F₂⁺)A centers in additively colored lithium-doped KI

David R. Foster and Irwin Schneider
Opt. Lett. 13(3) 207-208 (1988)

F-aggregate color centers in sodium-doped KI

Irwin Schneider
Opt. Lett. 17(8) 616-618 (1992)

Broadly tunable laser action beyond 3 μm from (F₂⁺)A centers in lithium-doped KI

Irwin Schneider and Charles L. Marquardt
Opt. Lett. 6(12) 627-628 (1981)

Selective two-step photoionization of F-aggregate centers using 1.06-μm radiation

Irwin Schneider and D. R. Foster
Opt. Lett. 11(11) 700-702 (1986)

Lithium–(F₂⁺)A centers in alkali-halide crystals

Irwin Schneider
Opt. Lett. 6(3) 157-158 (1981)