Optical absorption and emission properties of Pr3+ and Er3+ in lithium cesium mixed alkali borate glasses

Thermal, structural and spectroscopic properties of Pr3+-doped lead zinc borate glasses modified by alkali metal ions

“…It was observed that the increase of PbF 2 content leads to narrowing of the 1 D 4 → 3 H 4 band from 680 to 590 cm −1 and time constants of luminescence decays increase as a result of increasing the PbF 2 content. Optical absorption and emission properties of Pr 3+ and Er 3+ in lithium and caesium-mixed alkali borate glasses were studied by Ratnakaram et al [27], who reported that the radiative lifetimes (τ R ) of all the excited states of Pr 3+ are highest at 8 mol%. Voda et al [28] examined the optical properties of Pr 3+ -doped lithium tetraborate glasses and identified the nonradiative relaxations which reduce the quantum efficiency and consequently, the emission of the 1 D 4 → 3 H 4 transition.…”

Optical properties of praseodymium doped silver-borate glasses

“…In recent years, research on common glasses containing rare earth ions have attracted considerable interest because of the rate at which and the mechanism by which excited states of these ions are formed and decay. These are of great significant in the application of these ions in phosphors, lasers, solar energy concentrators, amplifications and other currently developed electronic devices [1]. It has been stated that there are at least 36 lasing transitions in rare earth doped glass systems [2].…”

Spectroscopic studies of the Pr3+-doped borovanadate glass

“…In addition, its energy level scheme allows for efficient energy transfer and up conversion processes, thus enlarging the possible areas of Pr 3+ applications. Many spectroscopic studies on Pr 3+ activated crystals and glasses have been reported in literature by several authors [3][4][5][6][7][8][9][10][11][12]. The Judd-Ofelt (JO) [13,14] theory has been proved to be a powerful tool which is widely used for an analysis of the optical spectra of RE ions in various media.…”