Judd–Ofelt theory: optical absorption and NIR emission spectral studies of Nd3+:CdO–Bi2O3–B2O3 glasses for laser applications
Source abstract
Abstract
This article reports on the optical absorption and NIR emission properties of Nd3+ ions doped CdO–Bi2O3–B2O3 (CdBiB) glasses. Judd–Ofelt theory has been applied to calculate the oscillatory strengths of the transitions in the absorption spectra and also the intensity parameters Ωλ (λ = 2, 4, and 6). These results were then used to compute the radiative properties of emission transitions of Nd3+:CdBiB glasses. From the NIR emission spectra of Nd3+:CdBiB glasses, three NIR emission bands are observed at 900, 1069, and 1338 nm and assigned to the transitions (4F3/2 → 4I9/2), (4F3/2 → 4I11/2), and (4F3/2 → 4I13/2), respectively. The concentration quenching phenomenon has also been explained. The stimulated emission cross-section and FWHM values were calculated for all the Nd3+:CdBiB glasses.
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Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Solid State Laser Technologies
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