Mukhayyarotin Niswati Rodliyatul Jauhariyah, Cari, Ahmad Marzuki
This paper presents the optical properties of erbium doped tellurite glasses with the composition of 55TeO2-2Bi2O3-35ZnO-5PbO-(3-x)Na2O-xEr2O3 where x = 0, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 mol%. Refractive index of the glasses was measured using Brewster’s angle method and their optical absorption spectra were measured in spectral range 200 – 1100 nm recorded at room temperature. The results show that the glass refractive index increases with the increase of Er3+ ion content in the glass and the optical band gap energy decreases with the increase of erbium content in the glass. © 2016 Trans Tech Publications, Switzerland.
Physics Department, Universitas Negeri Surabaya, Jl. Kampus Unesa Ketintang Gd. C3 Lt.1, Surabaya, 60231, Indonesia; Sebelas Maret University, Jl. Ir. Sutami 36 A Kentingan Gd. Pascasarjana UNS, Surakarta, 57126, Indonesia; Physics Department, Sebelas Maret University, Jl. Ir. Sutami 36 A Kentingan Gd. B FMIPA UNS, Surakarta, 57126, Indonesia
