Spectral Characteristics of a Quantum-Dot (CdSe/ZnS)-Doped Fiber in Low Concentrations

Spectral Characteristics of a Quantum-Dot (CdSe/ZnS)-Doped Fiber in Low Concentrations
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低浓度量子点 (CdSe/ZnS) 掺杂光纤的光谱特性

DOI:
10.1109/jlt.2009.2013220
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发表时间:
2009-05
影响因子:
4.7
通讯作者:
Peng, Xuefeng
Peng, Xuefeng
中科院分区:
工程技术2区
文献类型:
--
作者:
Cheng, Cheng;Peng, Xuefeng

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相似文献

制备了一种低浓度掺杂的CdSe/ZnS量子点光纤,用于制作光纤放大器。测量了不同掺杂浓度和不同长度的掺杂光纤的光致发光和吸收光谱。通过实验研究了掺杂浓度和光纤长度对光谱的影响。与掺杂前相比,掺杂后光致发光峰值波长发生了红移。当掺杂浓度为(0.33~2.5)倍10-2 mg/mL,光纤长度为1~20 cm时,红移随掺杂浓度和光纤长度的增加而增大。对于给定的激发强度,最大光致发光峰强度与光纤长度有关,在给定的光纤长度下,最大光致发光峰强度与掺杂浓度有关。
A kind of optical fiber doped with CdSe/ZnS quantum dot in low concentrations was fabricated for preparing a fiber amplifier. The photoluminescence and absorption spectra transmitted through the doped fiber were measured in different doping concentrations and fiber lengths. Effects of the doping concentration and fiber length on the spectra were investigated by the experiment. Compare with the doping before, a red shift of the photoluminescence-peak wavelength was observed after the doping. The red shift goes up with the increases of doping concentration and fiber length in the concentration ranging from (0.33 ~ 2.5) times 10- 2 mg/mL and the fiber length from 1-20 cm. For the given excitation intensity, the maximum PL-peak intensity is related to the fiber length, and in the given fiber length, it is related to the doping concentration.
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发表时间: 2007
影响因子: 3.6
作者:
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