Optical properties of Pr3+ in selenide glasses modified with CsI

Enhancing fluorescence emission properties of Dy3+ doped in chalcogenide glass via very small compositional modifications

“…Host materials with decreased phonon energy may resolve the adverse effect of MPR, and in this respect many attempts have been made to explore low phonon energy hosts through compositional modification of host glasses. It seems to be obvious, however, that a sizable composition change that effectively reduces the phonon energy down to a satisfactory level, usually brings about some collateral changes to such a modified host, i.e., deterioration of thermal and chemical stability in addition to changes in linear and nonlinear optical properties [5,6]. It is thus important to exploit a suitable compositional adjustment that enhances only the radiative emission properties of RE ions, while keeping thermal and chemical properties of host glasses unaltered.…”