title: Room-temperature laser action at 4.34.4 mum in CaGa(2)S(4):Dy(3+).
abstract: We report room-temperature mid-IR laser operation in a new low-phonon-frequency nonhygroscopic host crystal, calcium thiogallate (CaGa(2)S(4)) . Laser action at 4.314.38 mum on the Dy(3+)H(11/2)(6)?H(13/2)(6) transition occurred with a maximum slope efficiency of 1.6%.
authors: M C
authors: MC
authors: Nostrand
authors: R H
authors: RH
authors: Page
authors: S A
authors: SA
authors: Payne
authors: W F
authors: WF
authors: Krupke
authors: P G
authors: PG
authors: Schunemann