title: 4.0-4.5-mum lasing of Fe:ZnSe below 180 K, a new mid-infrared laser material.
abstract: Lasing of Fe:ZnSe is demonstrated, for the first time to the authors' knowledge, for temperatures ranging from 15 to 180 K. The output wavelength of the Fe:ZnSe laser was observed to tune with temperature from 3.98mum at 15 K to 4.54mum at 180 K. With an Er:YAG laser operating at 2.698mum as the pump source, a maximum energy per pulse of 12muJ at 130 K was produced. Laser slope efficiencies of 3.2% at 19 K and 8.2% at 150 K were determined for an output coupling of 0.6%. A laser emission linewidth of 0.007mum at 3.98mum was measured at 15 K. Absorption and emission spectra and emission lifetimes for Fe:ZnSe are also discussed.
authors: J J
authors: JJ
authors: Adams
authors: C
authors: C
authors: Bibeau
authors: R H
authors: RH
authors: Page
authors: D M
authors: DM
authors: Krol
authors: L H
authors: LH
authors: Furu
authors: S A
authors: SA
authors: Payne