Objectives: To investigate the effect of B 2 O 3 replaced by Nd 2 O 3 studies on the spectroscopic characteristics of trivalent neodymium (Nd 3+ )-doped glasses using XRD, FTIR, absorption, and emission spectroscopy. Methods: The glasses were synthesized using the conventional melt quenching technique at 1150 0 C. The amorphous nature of the samples was confirmed by x-ray diffraction studies. Findings: The addition of Nd 2 O 3 concentration affects the absorption and emission properties of the Nd 3+ ion measured in the near-infrared luminescence range from 0.9µm, 1.06 µm, and 1.36µm associated with the 4 F 3/2 → 4 I J (J = 9/2, 11/2, 13/2) transitions. Novelty: The novelty of the present work is to fully understand and characterize the luminescence of Nd 3+ doped borate bulk glasses with different doping concentrations. So as to gain an insight of 1.06 µm corresponding to 4 F 3/2 → 4 F 11/2 transition, these glasses are highly potential one which is an applicable to NIR emitting solid state device.
Background/Objectives: 23CaO + 10Al 2 O 3 + (51 − x)B 2 O 3 + 6BaF 2 + 10Na 2 O + xNd 2 O 3 glasses were designed for understanding the optical properties of the emission, such as absorption, lifetime, and quantum efficiencies (QEs) of the glasses. Methods: The glasses were synthesized using the conventional melt-quenching technique at 1150 0 C. The amorphous nature of the samples was confirmed by x-ray diffraction studies. Findings: The radiative QE (η) obtained from the radiative lifetime by Judd-Ofelt analysis, as well as directly measured lifetime using a 582 nm were measured and compared with other reported literature. Novelty: The present work focuses on the replacement of fluorine ions to their alkali content and studied their stimulated emission cross section. The stimulated emission cross-section shows σ emi =25.3x10 -21 cm 2 and σ emi =18.5x10 -21 cm 2 for oxide (R1) and oxy-fluoride glasses (F2) with 0.5mol% Nd 2 0 3 content respectively. The stimulated emission cross section σ emi =29.9x10 -21 cm 2 and σ emi =32.5x10 -21 cm 2 for oxide (F1) and oxy-fluoride (A3) glasses with 1.0mol% Nd 2 0 3 content respectively. The data clearly suggests that addition of higher fluorine content in the glasses are suitable for NIR solid state device applications.
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