Intense Upconverted White Light Emission from Tm3+ - Er3+ - Yb3+ Doped Zinc Tungsten Tellurite Glasses

Abstract

Abstract:The different amount of rare earth ions doped zinc tungsten tellurite glasses with the compositions (70-x-y-z)TeO2 -20ZnO -10WO3 -xEr2O3 -yTm2O3 -zYb2O3 (x = 0.3, 0.5; y = 0.3, 0.5; z = 3) have been synthesized using melt quenching technique. Özet: (70-x-y-z)TeO2 -20ZnO -10WO3 -xEr2O3 -yTm2O3 -zYb2O3 (x = 0.3, 0.5; y = 0.3, 0.5; z = 3) bileşimine sahip farklı miktarlarda nadir toprak iyonları katkılandırılmış çinko tungsten tellurit camları ergitme döküm tekniği kullanılarak sentezlenmiştir. Tm 3+ /Er 3+ /Yb 3+ üçlü nadir toprak iyonu katkılı çinko tungsten tellürit camlarında üst enerji dönüşümü ve enerji transfer süreçleri yoluyla elde edilen mavi, yeşil, kırmızı ve kızılötesi lüminesansları 975 nm diyot lazer uyarımı altında araştırılmıştır. Buna göre, şiddetli mavi (

Nonlinear optical absorption properties of tellurium glasses containing different network modifiers

“…In recent years, tellurium oxide (TeO 2 )-based glasses have attracted much interest for photonics applications such as laser host material, white light purposes via up-conversion emission, optical amplifiers, etc. Tellurite-based glasses offer many advantages over some other oxide-based glasses due to their low phonon-energy, high refractive index, high dielectric constant, good corrosion resistivity, thermal and chemical stability, and low melting point [1][2][3][4][5][6]. Besides these features, tellurite glasses having the large nonlinear refractive index which is good for optical switching applications [7,8].…”

“…Besides these features, tellurite glasses having the large nonlinear refractive index which is good for optical switching applications [7,8]. Furthermore, tellurite glasses exhibit the advantages of both semiconductors and organic materials due to their wide transmission region (0.3-6 µm) [1][2][3][4][5][6].…”

“…Since TeO 2 is the most stable form of the tellurium and does not able to form glass matrix easily by itself, a network modifier should be added into the system in order to obtain telluritebased glasses [1,[9][10][11][12]. The composition changes due to the addition of different type and the amount of the network modifiers would also lead to changes in the optical and the thermomechanical properties of the glasses.…”