Ion-doped glasses

Velapoldl et al. (64) used a similar approach but prepared fibers of uniform diameter (5-45 pm) from Inorganic Ion-doped glasses. The fluorescence parameters of these materials can be changed by substituting various Ions, such as Tb , Sm , Eu , Mn, UOj, Cu, and Sn. They show excellent stability under Irradiation using Incident excitation (measurement Imprecision of 1% under continuous Irradiation In the microscope for 24 h) and have a fluorescence flux density proportional to the fiber length. 

Recently, microspheres (5-40 pm diameter) of these Ion-doped glasses have been prepared and evaluated (65). Ions can be selected to produce either sharp (Tb, Sm , Eu ) or broad (Mn , UO2, Cu, ... 

Table VI. Characteristics of Luminescence from Inorganic Ion-Doped Glasses...

Figure 5. Two- and three-dimensional representations of relative luminescence flux of uranyl ion-doped glass beads, measured in a 100 X 100 raster with 10,000 data points. Depicted are a homogeneously doped bead (a) and a nonhomogeneously doped bead (b).

Velapoldi RA, Travis JC, Cassatt WK, Yap WT. Inorganic ion-doped glass fibres as microspectrofluorimetric standards. J Microsc 1974 103 293-303. 

In the second topic, we will describe a very smart new application based on Yb + ion doped glasses laser cooling of condensed matter. 

All four terms have been observed empirically. Terms 1-3 are well known, and term 4 has been observed as a magnetization in europium ion doped glasses by van der Ziel et al. [37] as argued already. The RFR term therefore emerges self-consistently with three other well-known and well-observed terms from what is effectively the 0(3) covariant derivative. 

Rare-earth ions doped glasses have been prepared and characterized to understand their commercial applications as glass lasers and also in the production of wide variety of other types of optical components [9]. 

SOL-GEL PROCESSING FOR PREPARATION OF THE RARE-EARTH ION-DOPED GLASSES... 

Figure 11-5. Optical absorption and fluorescence spectra of Sn and ion-doped glasses.

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