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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Improvement of ultra-broadband near-infrared emission at around 1.0 mu m in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses
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Improvement of ultra-broadband near-infrared emission at around 1.0 mu m in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses

机译：在ND3 + -S3 + -PR3 +三掺杂的碲菊眼镜中提高大约1.0μm的超宽带近红外发射

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摘要

Nd3+-Er3+-Pr3+ tri-doped tellurite glasses with lower phonon energy (768 cm(-1)) were prepared by conventional melt-quenching method. Under the excitation of 488nm, an ultra-broadband emission from 760 to 1150 nm with full-width at half-maximum (FWHM) of about 262 nm was observed in the prepared Nd3+-Er3+-Pr3+ tri-doped glass sample, larger than that of the recently reported glasses. The DSC curve shows that the prepared tellurite glass has high glass transition temperature (T-g=382 degrees C) and good thermal stability (Delta T=203 degrees C). The gain coefficient, maximum absorption and emission cross section of Nd3+-Er3+-Pr3+ tri-doped tellurite glass for Nd3+:F-4(3/2) -> I-4(9/2) and Er3+:I-4(11/2) -> I-4(15/2) transitions are calculated as 0.41 cm(-1), 0.80 x 10(-20) cm(2), 1.07 x 10(-20) cm(2), 0.35 cm(-1), 0.37 x 10(-20) cm(2) and 0.45 x 10(-20) cm(2), respectively. Compared with the recently reported glasses, these values were effectively improved. This means that the prepared tellurite glass has better fluorescence emission and laser gain performance.
机译：采用常规熔融淬灭法制备了低声子能量（768cm（-1））的Nd3+-Er3+-Pr3+三掺杂碲酸盐玻璃。在488nm的激发下，在制备的Nd3+-Er3+-Pr3+三掺杂玻璃样品中观察到760至1150nm的超宽带发射，半高宽（FWHM）约为262nm，大于最近报道的玻璃。DSC曲线表明，制备的碲酸盐玻璃具有较高的玻璃化转变温度（T-g=382℃）和良好的热稳定性（δT=203℃）。计算了Nd3+：F-4（3/2）->I-4（9/2）和Er3+：I-4（11/2）->I-4（15/2）跃迁的增益系数、最大吸收和发射截面分别为0.41cm（-1）、0.80x10（-20）cm（2）、1.07x10（-20）cm（2）、0.35cm（-1）、0.37x10（-20）cm（2）和0.45x10（-20）cm（2）。与最近报道的眼镜相比，这些数值得到了有效改善。这意味着制备的碲酸盐玻璃具有更好的荧光发射和激光增益性能。

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