GeS₂-In₂S₃-CsI Chalcogenide Glasses Doped with Rare Earth Ions for Near- and Mid-IR Luminescence.

ABSTRACT: Chalcogenide glass has been considered as a promising host for the potential laser gain and amplifier media operating in near- and mid-IR spectral region. In this work, the IR luminescence spectra of rare earth ions (Tm³⁺, Er³⁺, and Dy³⁺) doped 65GeS₂-25In₂S₃-10CsI chalcogenide glasses were measured under the excitation of an 808?nm laser diode. To the best of our knowledge, it firstly provides the luminescence spectra of a full near- and mid-IR spectral range from 1 to 4??m in rare earth ions doped chalcogenide glasses. The results of absorption spectra, luminescence spectra, and fluorescence decay curves were obtained in these samples with singly-, co- and triply-doping behaviors of Tm³⁺, Er³⁺, and Dy³⁺ ions. In order to search possible efficient IR emissions, the luminescence behavior was investigated specifically with the variation of doping behaviors and dopant ions, especially in the samples co- and triply-doped active ions. The results suggest that favorable near- and mid-IR luminescence of rare earth ions can be further modified in chalcogenide glasses through an elaborated design of doping behavior and optically active ions.

SUBMITTER: Li L 

PROVIDER: S-EPMC5116617 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature