Enhanced emission in the NIR range by Nd3+ doped borosilicate glass for lasing applications

IF 2 3区物理与天体物理 Q3 OPTICS Applied Physics B Pub Date : 2024-08-12 DOI:10.1007/s00340-024-08294-x

Yasha Tayal, Rupesh A. Talewar, Sk. Mahamuda, Kartika Maheshwari, Sheetal Kumari, Mohit Kumar, Ravita Pilania, Aman Prasad, A. S. Rao

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Abstract

Borosilicate glasses were prepared via melt quench technique with different concentration of Nd³⁺ ions. X-ray diffraction (XRD) was performed for the prepared glass to study the amorphous structure. The glass stability was studied by Thermo-gravimetric Analysis (TGA). Spectroscopic analysis of the prepared glasses was done through absorption, excitation, emission and decay measurements. Absorption spectra was used to evaluate the J-O parameters. Radiative parameters are evaluated with the help of application of J-O theory. Emission spectra show three prominent bands in NIR region arising from ⁴F_3/2 → ⁴I_9/2, ⁴I_11/2 and ⁴I_13/2 centered around 910, 1068 and 1339 nm accordingly, with the most intense being the one at 1068 nm. Stimulated emission cross section, branching ratio and quantum efficiency for ⁴F_3/2 → ⁴I_11/2 transition is very high and is suitable for lasing applications. Dipole–dipole interaction is observed among activator ions on the basis of Dexter theory. The optimized Nd³⁺ doped glass (NBS10) possess maximum value for all radiative parameters and hence can be best suited for applications in the area of lasers and fiber amplifiers.

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掺杂钕3+的硼硅玻璃在近红外范围内的增强发射，用于激光应用

通过熔体淬火技术，使用不同浓度的 Nd3+ 离子制备了硼硅玻璃。对制备的玻璃进行了 X 射线衍射 (XRD)，以研究其无定形结构。通过热重分析法（TGA）研究了玻璃的稳定性。通过吸收、激发、发射和衰变测量对制备的玻璃进行了光谱分析。吸收光谱用于评估 J-O 参数。借助 J-O 理论的应用评估了辐射参数。发射光谱显示，在近红外区域，4F3/2 → 4I9/2、4I11/2 和 4I13/2 产生了三个突出的波段，分别位于 910、1068 和 1339 纳米波段，其中波段最长的是 1068 纳米波段。4F3/2 → 4I11/2 转变的受激发射截面、支化比和量子效率都非常高，适合激光应用。根据 Dexter 理论，活化剂离子之间存在偶极-偶极相互作用。优化后的掺钕玻璃（NBS10）的所有辐射参数都达到了最大值，因此最适合应用于激光器和光纤放大器领域。

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来源期刊

Applied Physics B 物理-光学

CiteScore

4.00

自引率

4.80%

发文量

202

审稿时长

3.0 months

期刊介绍： Features publication of experimental and theoretical investigations in applied physics Offers invited reviews in addition to regular papers Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more 94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field. In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.