title: Mid-infrared luminescence properties of Dy-doped silver halide crystals.
abstract: The absorption and the kinetics of the emission in the mid-infrared (mid-IR) were investigated in AgCl(x)Br(1-x) crystals doped with Dy(3+) ions. Strong emission bands were detected at 3, 4.4, and 5.5 μm and attributed to the (6)H(13/2)→(6)H(15/2), (6)H(11/2)→(6)H(13/2), and (6)F(11/2)+(6)H(9/2)→(6)H(11/2) transitions. Various optical parameters were calculated for the Dy(3+) doped crystals, using the Judd-Ofelt approximation and the rate equations. The measured results and the calculated parameters indicate that these doped crystals could be used for the development of mid-IR solid-state lasers or mid-IR fiber lasers.
authors.affiliation: School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel. lyakhovs@post.tau.ac.il
authors.forename: Irena
authors.initials: I
authors.lastname: Shafir
authors.forename: Ariel
authors.initials: A
authors.lastname: Nause
authors.forename: Lev
authors.initials: L
authors.lastname: Nagli
authors.forename: Michael
authors.initials: M
authors.lastname: Rosenbluh
authors.forename: Abraham
authors.initials: A
authors.lastname: Katzir