论文信息 - Optical study of halide modified sulfide glasses containing neodymium ions

Optical study of halide modified sulfide glasses containing neodymium ions

Abstract Optical properties of different halide modified germanium gallium sulfide glasses doped with Nd 3+ ions are presented. Glasses studied were of the compositions: 50GeS 2 –25Ga 2 S 3 –25CsX, doped with 0.5 at.% Nd 3+ where X is Cl, Br or I. Absorption spectra were measured and oscillator strengths calculated. Excited-state emission lifetimes were calculated by the Judd–Ofelt theory and compared with the measured lifetimes. Results were compared with a pure sulfide glass of the composition: Ge 25 Ga 5 S 70 . The halide modified glasses have been found to present a unexpected reversible water sensitivity.

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