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Spectroscopy and frequency upconversion of Er~(3+) ions in lead niobium germanate glasses

机译:锗酸铅铌玻璃中Er〜(3+)离子的光谱学和频率上转换

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摘要

In this work we report the optical properties and upconversion luminescence of Er~(3+) ions in lead-niobium-germ-anate glass (GeO_2-PbO-Nb_2O_5) suitable for use in optical waveguide devices. The optical properties of Er~(3+) ions have been established in terms of absorption and emission spectra and lifetime measurements in the visible and infrared regions. The 1.5 μm emission cross-section has been determined from the line shape of the emission spectrum and the calculated emission probability for the ~4I_(13/2) level. Upconversion emissions at 529, 548, and 653 nm have been obtained under infrared excitation at 803 nm in the ~4I_(9/2) level and compared with those obtained under one photon excitation. Pumping power measurements were also carried out. The possible excitation mechanisms responsible for this upconversion luminescence are discussed.
机译:在这项工作中,我们报告了适用于光波导器件的铅铌锗锗酸盐玻璃(GeO_2-PbO-Nb_2O_5)中Er〜(3+)离子的光学性质和上转换发光。根据吸收光谱和发射光谱以及在可见光和红外区域的寿命测量,已经确定了Er〜(3+)离子的光学性质。根据发射光谱的线形和计算出的〜4I_(13/2)发射概率确定了1.5μm发射截面。在约4I_(9/2)的水平下于803 nm的红外激发下获得了529、548和653 nm的上转换发射,并与一次光子激发下的发射进行了比较。还进行了泵浦功率测量。讨论了负责这种上转换发光的可能的激发机理。

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