Abstract
Neodymium strontium bismuth borate glass samples were prepared using the traditional technique of high-temperature melting. The optical absorption spectra of the studied samples were recorded at room temperature. Analyzing the recorded spectra, important optical parameters were determined; for example, refractive index, optical dielectric constant, the indirect optical band gap and Urbach energy. The calculated Judd-Ofelt parameters exhibited trend which is Ω2 > Ω6 > Ω4. Moreover, the experimental and calculated oscillator strengths of the radiative 4f transitions, their lifetimes τ, refractive indices n, the emission, absorption cross sections and the branching ratio β were all determined and investigated. Calculations of the optical gain coefficient for all emission peaks revealed the possibility to use the present glass in laser emission materials and optical communication applications.
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