Glasses Tech

September 22, 2009

Thermal and optical properties of PbO-KF glasses

Filed under: Glasses 1995 — admin @ 4:52 am

Eyeglasses

Glass formation between PbO and KF is reported. The influence of composition onthemal stability, density, molar volume, refractive index, opticl band, gap, Urban energy, and Pb^2+ emission spectra are presented. While KF influences thermal stability, the PbO content markedly influences the optical propertie due to the formation of strong -Pb-O…Pb- covalent linkages. Increasing PbO content also results in phonon assisted nonradiative decay from ^1P//1 and ^3P//1 levels to ^3P//0 level leading to a marked decrease in the ^1P//1→^1S//0 emission.

Nachimuthu, P. Jagannathan, R.

Glasses Tech