Dy 离子在氟硅酸铅玻璃中的光谱评估——一种用于固态黄光激光器的有前途的材料。
Spectroscopic assessment of Dy ions in lead fluorosilicate glass as a prospective material for solid state yellow laser.
机构信息
Department of Physics, Sri Venkateswara University, Tirupati 517 502, India.
Department of Physics, Sri Venkateswara University, Tirupati 517 502, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2019 Apr 5;212:315-321. doi: 10.1016/j.saa.2019.01.015. Epub 2019 Jan 10.
Lead fluorosilicate (SKNPfLfDy) glasses doped with various Dy ion concentrations employed via melt-quenching method have been prepared and studied their thermal, optical and spectral properties for the spreading out of yellow laser applications. The emission spectra have prominent emission at 575 nm (F → H) transition. The stimulated emission cross-section (5.14 × 10 cm) and branching ratio (62%) for the F → H transition were found to be relatively high. Lifetime is decreased from 1192 μs to 34 μs with increase in concentration due to concentration quenching as well cross-relaxation among the Dy ions. The quantum efficiency found to be 69%. The optical gain, figure of merit, yellow/blue (Y/B) intensity ratio and gain bandwidth for 1.0 mol% Dy:SKNPfLf glass is found to be 27.55 × 10 cm s, 19.01 × 10 cm s, 3.96 and 63.32 × 10 cm, respectively. The obtained results revealed that the SKNPfLfDy glasses possibly useful for yellow laser applications.
采用熔融淬火法制备了不同 Dy 离子浓度掺杂的氟硅铅（SKNPfLfDy）玻璃，并研究了其热学、光学和光谱性能，以扩展黄色激光应用。发射光谱在 575nm（F→H）跃迁处有显著发射。发现 F→H 跃迁的受激发射截面（5.14×10-20cm2）和分支比（62%）相对较高。由于浓度猝灭和 Dy 离子之间的交叉弛豫，寿命从 1192µs 降低到 34µs，随浓度的增加而降低。量子效率为 69%。对于 1.0mol%Dy:SKNPfLf 玻璃，光学增益、品质因数、黄/蓝（Y/B）强度比和增益带宽分别为 27.55×10-20cm·s、19.01×10-20cm·s、3.96 和 63.32×10-20cm。获得的结果表明，SKNPfLfDy 玻璃可能适用于黄色激光应用。
Zotero 插件