Overall Aspects of Glasses for Photonic Devices

Thin films based on Er>sup<3+>/sup< doped germanate-tellurite nanoglasses for Plasmonics

“…27,28 TeO 2 has three basic structural units (see Figure 2), each containing an LPE: TeO 4 , trigonal bipyramid (tbp): Composed of 4 oxygen atoms that are linked by covalent bonds with the central atom of Te and form the tbp; TeO 4 , trigonal pyramid (tp): When Te-O bonds are broken, trigonal pyramids are created, where two sites are bridging oxygen (BO) and one nonbridging oxygen (NBO), which is a Te=O double bond and a distorted tbp with TeO 3+1 : it is the distortion of the tbp due to the presence of excess oxygen (δ). 29,30 Tellurite glasses offer a unique combination of a wide transparency range, high rare-earth solubility, low melting temperature, and chemical stability, making them an attractive choice for applications in optics and photonics. Table 2…”

“…In the analysis, we used two detection channels labeled CH1 (500-540 nm) and CH2 (600-660 nm). FLIM analyses were performed in the same regions and under the same conditions as the results shown in Figures 29,30,and 31. The FLIM images in Figure 32.a was obtained in the same region and under the same conditions as Figure 29. The signal obtained in CH1 is much more intense than the CH2, as observed in 32.b.…”