Spectroscopic investigations of Er3+ :CdO-Bi2 O3-B2O3 glasses.

Luminescence : the journal of biological and chemical luminescence (2011-09-21)
C Nageswara Raju, C Adinarayana Reddy, S Sailaja, Hyo Jin Seo, B Sudhakar Reddy
ABSTRACT

This article reports on the optical properties of Er3+ ions doped CdO-Bi2O3-B2O3 (CdBiB) glasses. The materials were characterized by optical absorption and emission spectra. By using Judd-Ofelt theory, the intensity parameters Ω(λ) (λ = 2, 4, 6) and also oscillatory strengths were calculated from the absorption spectra. The results were used to compute the radiative properties of Er3+ :CdBiB glasses. The concentration quenching and energy transfer from Yb3+ -Er3+ were explained. The stimulated emission cross-section, full width at half maximum (FWHM) and FWHM × σpE values are also calculated for all the Er3+ CdBiB glasses.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Bismuth(III) oxide, ReagentPlus®, powder, 10 μm, 99.9% trace metals basis
Supelco
Boric anhydride, 99.98% trace metals basis
Sigma-Aldrich
Cadmium oxide, ≥99.99% trace metals basis
Sigma-Aldrich
Bismuth(III) oxide, powder, 99.999% trace metals basis
Sigma-Aldrich
Boric anhydride, granulated, ≥98.0% (T)
Sigma-Aldrich
Bismuth(III) oxide, nanopowder, 90-210 nm particle size, 99.8% trace metals basis
Sigma-Aldrich
Cadmium oxide, powder, 99.5% trace metals basis
Sigma-Aldrich
Boric anhydride, puriss. p.a., ≥98% (T)
Sigma-Aldrich
Boric anhydride, 99.999% trace metals basis
Sigma-Aldrich
Bismuth(III) oxide, purum, ≥98.0% (KT)