Mid-infrared Cr2+:ZnSe random powder lasers

Academic Article

Abstract

  • We report simple methods of laser active Cr2+:ZnSe powder fabrication with average grain sizes of either ∼ 10 or ∼1 μm without crystal growth stage. Pure, uniformly mixed ZnSe and CrSe powders annealed at 1000°C for 3 days in a sealed evacuated (∼10-4 Torr) quartz ampoule exhibited middle-infrared laser action at room temperature under 1.56 μm excitation of D2 Raman shifted radiation of Nd:YAG laser. The output-input characteristic clearly demonstrated the threshold-like behavior of the output signal with the threshold energy level of 0.5 and 3 mJ in 2.9 mm spot for 10 and 1 μm grain sizes, respectively. © 2008 Optical Society of America.
  • Published In

  • Optics Express  Journal
  • Digital Object Identifier (doi)

    Author List

  • Kim C; Martyshkin DV; Fedorov VV; Mirov SB
  • Start Page

  • 4952
  • End Page

  • 4959
  • Volume

  • 16
  • Issue

  • 7