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Study of optical absorbtion spectra of manganese phosphate glasses doped with rare-earth oxides

SANAA M. EL-RABIE1,*

Affiliation

  1. Phys. and Maths. Dept., Faculty of Electronic Engineering Menoufia Univ. Menouf, Egypt

Abstract

Optical absorption spectra are recorded in the wavelength range from 200-1100 nm for Mn(PO3)4.x R.E where x = 0.25, 0.5, 1, 2, 4, 6 and 8 wt. % and R.E refers to one of the rare-earth oxides, (Nd2O3, Gd2O3 and Pr6O11) respectively. Optical absorption bands due to intra-configuration transition of R E elements are observed with their numbers, intensities and positions depend on the kind and concentration of the doped oxide. The optical energy gap, Eopt., and the width of the band tail, ΔE, were calculated and their composition dependence was investigated and confirmed the appearance of 3-composition region which was obtained from density and molar volume data of worked glasses..

Keywords

Optical absorption, Optical glass, Manganese phosphate glass, Rare-earth doping.

Submitted at: April 5, 2007
Accepted at: July 15, 2007

Citation

SANAA M. EL-RABIE, Study of optical absorbtion spectra of manganese phosphate glasses doped with rare-earth oxides, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 7, pp. 2046-2055 (2007)