Temperature-dependent spectroscopic properties of Tm3+ in germanate, silica, and phosphate glasses:: A comparative study
Temperature-dependent spectroscopic properties of Tm3+ in germanate, silica, and phosphate glasses:: A comparative study
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DOI：
10.1063/1.2912952
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发表时间：
2008-05-01
影响因子：
3.2
通讯作者：
Tonelli, Mauro
中科院分区：
文献类型：
--
作者：
Turri, Giorgio;Sudesh, Vikas;Tonelli, Mauro
掺铥锗酸盐，二氧化硅和磷酸盐玻璃的光谱特性进行了测量和比较，因为这样的玻璃是感兴趣的材料，光纤激光器在人眼安全的波长区域。研究了（3）F（4）激发态荧光在8 ~ 300 K的衰减动力学，结果表明（3）F（4）的寿命与基质有很强的依赖性。利用Fuchtbauer-Ladenburg技术得到了随温度变化的受激发射截面。在磷酸盐玻璃中，荧光寿命很短，使得这种材料难以用于2 μ m的激光目的。Tm（3+）掺杂锗酸盐玻璃显示出比二氧化硅更长的寿命，相当的受激发射截面值和一些有趣的温度无关的性质。(C)2008年美国物理学会。
Spectroscopic properties of thulium-doped germanate, silica, and phosphate glasses were measured and compared since such glasses are of interest as materials for fiber lasers in the eye-safe wavelength region. (3)F(4) excited state fluorescence decay dynamics was investigated at temperatures from 8 to 300 K and the results revealed a strong dependence of the (3)F(4) lifetime on the host matrix. The temperature-dependent stimulated emission cross section was obtained by using the Fuchtbauer-Ladenburg technique. In phosphate glass the fluorescent lifetime is short, making this material difficult to use for 2 mu m laser purposes. Tm(3+)-doped germanate glass shows a longer lifetime than silica, a comparable value of stimulated emission cross section and some interesting temperature-independent properties. (C) 2008 American Institute of Physics.