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Thermal and photoluminescence properties of Er3+-doped (GaSe)(x)(As2Se3)(1-x) glasses

机译:掺Er3 +(GaSe)(x)(As2Se3)(1-x)玻璃的热和光致发光特性

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摘要

We studied the thermal properties and photoluminescence characteristics of (GaSe)(x)(As2Se3)(1-x) glasses with different amounts of GaSe (up to 5 mol%) and 1 at.% Er3+. We prepared the glass samples by means of melt-quenching procedure. We have carried out temperature-modulated differential scanning calorimetry measurements to study glass transformation, thermal stability, phase uniformity and structural changes of these glasses. We evaluated the glass transition temperature and the crystallization behavior of glass samples. We used a 980 nm laser diode to pump bulk Er-doped glass samples. The 980 nm pumping induced a 1550 nm photoluminescence output signal. By appropriately pulsing the excitation, we have measured the lifetime of the exited Er state in these Se-As-Ga optical glasses. We have also done visible to NIR spectroscopy of the glass samples and obtain the Er3+ absorption spectra. (C) 2003 Elsevier B.V. All rights reserved. [References: 9]
机译:我们研究了具有不同含量的GaSe(最高5 mol%)和1 at。%Er3 +的(GaSe)(x)(As2Se3)(1-x)玻璃的热性能和光致发光特性。我们通过熔融淬火程序制备了玻璃样品。我们已经进行了温度调制差示扫描量热法测量,以研究这些玻璃的玻璃转变,热稳定性,相均匀性和结构变化。我们评估了玻璃化转变温度和玻璃样品的结晶行为。我们使用了980 nm的激光二极管来泵浦大量掺Er的玻璃样品。 980 nm泵浦激发了1550 nm的光致发光输出信号。通过适当地激发脉冲,我们测量了这些Se-As-Ga光学玻璃中存在的Er状态的寿命。我们还对玻璃样品的NIR光谱进行了可视化,并获得了Er3 +吸收光谱。 (C)2003 Elsevier B.V.保留所有权利。 [参考:9]

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