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New Materials for Broadband Optical Amplifiers

机译：宽带光放大器的新材料

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An emission, which covers the spectral range from the O to L-band, was observed from a Ni~(2+)-doped zinc-alumino-silicate glass at room temperature. The emission lifetime was about 440 μsec at 5 K and decreased with an increase temperature to 240 蘳ec at 300 K. The emission band was identified as the downward d-d ~3T_(2g) (~3F)→~3 A_(2g)(~3F) transition of octahedral Ni~(2+) ions. It was confirmed from X-ray diffraction analyses and transmission electron microscope observations that ZnAl_2O_4 spinel nano-crystals containing octahedral Ni~(2+) ions acted as emission centers. It is expected that the Ni~(2+)-doped glass has a potential for a broadband amplification medium.
机译：在室温下，从掺杂了Ni〜（2+）的锌铝硅酸盐玻璃中观察到了覆盖了从O到L波段的光谱范围的发射。发射寿命在5 K时约为440μsec，在300 K下随温度升高而降低至240 ec。发射带被确定为向下dd〜3T_（2g）（〜3F）→〜3 A_（2g）八面体Ni〜（2+）离子的（〜3F）跃迁。通过X射线衍射分析和透射电子显微镜观察证实，含有八面体Ni〜（2+）离子的ZnAl_2O_4尖晶石纳米晶体是发射中心。预期掺杂有Ni〜（2+）的玻璃具有用于宽带放大介质的潜力。

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