title: Crystalline Cr²⁺:ZnSe/chalcogenide glass composites as active mid-IR materials.
abstract: We propose new transition metal (TM)-doped ZnSe/As₂S₃:As₂Se₃ composite materials for mid-IR fiber lasers. The composites are the suspension of crystalline micro- and nanosized TM²⁺:ZnSe or TM²⁺:ZnS powders in chalcogenide glasses with the refraction index matching. Mid-IR room-temperature lasing of Cr²⁺:ZnSe/As₂S₃:As₂Se₃ microcomposite material is demonstrated at the 2.4 μm wavelength.
authors.affiliation: Center for Optical Sensors and Spectroscopies and the Department of Physics, University of Alabama at Birmingham, CH 310, 1300 University Boulevard, Birmingham, Alabama 35294, USA. dmartych@uab.edu
authors.forename: D V
authors.initials: DV
authors.lastname: Martyshkin
authors.forename: J T
authors.initials: JT
authors.lastname: Goldstein
authors.forename: V V
authors.initials: VV
authors.lastname: Fedorov
authors.forename: S B
authors.initials: SB
authors.lastname: Mirov