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Optical properties and infrared-to-visible upconversion in Er3+-doped GeO2-Bi2O3 and GeO2-PbO-Bi2O3 glasses

机译:掺Er3 +的GeO2-Bi2O3和GeO2-PbO-Bi2O3玻璃的光学性质和红外至可见光上转换

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摘要

Luminescence properties and upconversion studies of germanate glasses in ternary GeO2-PbO-Bi2O3 and binary GeO2-Bi2O3 Systems containing Er2O3 (0.1-1.0 wt%) are presented for the first time. The Judd-Ofelt parameters found for these glasses are: Omega(2) = 4.50 x 10(-20) cm(2), Omega(4) = 1.55 x 10(-20) cm(2) and Omega(6) = 0.69 x 10(-20) cm(2) for binary glasses and Omega(2) = 4.44 x 10(-20) cm(2), Omega(4) = 1.82 x 10(-20) cm(2) and Omega(6) = 0.39 x 10(-20) cm(2) for ternary glasses. The refractive index of these glasses is found to be similar to 2. The transition I-4(13/2)->I-4(15/2) is peaked at similar to 1.53 mu m and shows a radiative lifetime around 5 ms. Both systems exhibit similar emission cross-section at 1.53 mu m around 0.8 x 10(-20) cm(2). Upconverted green emission at similar to 530 nm (H-2(1) (1/2)->I-4(15/2)) and -550 nm (S-4(3/2)->I-4(15/2)) and red emission at similar to 668 nm (F-4(9/2)->I-4(15/2)) are observed under 980 nm cw excitation. Our results suggest that these glasses are promising candidates for applications in photonics. (c) 2005 Elsevier B.V. All rights reserved.
机译:首次介绍了锗酸盐玻璃在含Er2O3(0.1-1.0 wt%)的三元GeO2-PbO-Bi2O3和二元GeO2-Bi2O3系统中的发光特性和上转换研究。这些眼镜的Judd-Ofelt参数为:Omega(2)= 4.50 x 10(-20)cm(2),Omega(4)= 1.55 x 10(-20)cm(2)和Omega(6)= 0.69 x 10(-20)cm(2)用于二元眼镜,Omega(2)= 4.44 x 10(-20)cm(2),Omega(4)= 1.82 x 10(-20)cm(2)和Omega (6)= 0.39 x 10(-20)cm(2)对于三元眼镜。发现这些玻璃的折射率与2相似。跃迁I-4(13/2)-> I-4(15/2)的峰值类似于1.53μm,并显示约5 ms的辐射寿命。 。两种系统在0.83 x 10(-20)cm(2)处的1.53微米处都显示出类似的发射截面。在类似于530 nm(H-2(1)(1/2)-> I-4(15/2))和-550 nm(S-4(3/2)-> I-4( 15/2))和在980 nm cw激发下观察到类似于668 nm的红色发射(F-4(9/2)-> I-4(15/2))。我们的结果表明,这些眼镜是光子学应用的有希望的候选者。 (c)2005 Elsevier B.V.保留所有权利。

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