Tellurite glasses are important for nonlinear optical applications. We report measurements of the spectrum of empty states in tellurium oxide, using the method of electron energy-loss spectroscopy based on excitations from inner shells. This near-edge structure is completely dominated near the threshold by core-hole effects. Several popular approximations for this effect, along with a new "Z+2" approximation, are evaluated in simulations.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jul 1 2004|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics