Ground state depletion - A step towards mid-IR lasing of doped silver halides

Yuval Tsur*, Sharone Goldring, Ehud Galun, Abraham Katzir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We show for the first time ground state absorption saturation in a doped silver halide crystal (AgClxBr1-x), specifically with cobalt. Spectroscopic studies showed absorption bands in the 1.4-2.5 μm region and emission bands in the 3.8-5.0 μm region, with a 1.5 ms lifetime at low temperatures. Absorption saturation indicates a good low and room temperature lasing feasibility at 4.1 μm. In addition, a comparison of cobalt, nickel and iron as dopants is presented. These doped silver halide crystals can be extruded to form optical fibers, possibly introducing a new family of fiber lasers for the middle infrared.

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalJournal of Luminescence
StatePublished - 1 Jul 2016


  • Absorption saturation
  • Fluorescence
  • Laser materials
  • Middle infraredlasers


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