The subject of this paper is the structural and luminescence properties of selected rare earth ions in lead germanate glasses. Glasses were obtained by conventional high-temperature melt-quenching technique. Europium, dysprosium and terbium ions were chosen as active dopants. The spectroscopic p...detailed
We measured the absorption coefficients and extinction ratio of ferroelectric lead germanate in the range of 0.2 – 1.2 THz by means of terahertz time-domain spectroscopy. We observed dramatic changes in the dichroism of the crystal induced by temperature shifts between 300 K and 493 K. We estim...detailed
Vanadium doped lead germanate glasses were synthesized by melt quenching technique. The samples were characterised by XRD and DSC patterns. Optical absorption and ESR studies of the samples indicated that a considerable proportion of vanadyl ions exist in V4+ and V5+states due to substitution of...detailed