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Temperature effect on colloidal PbSe quantum dot-filled liquid-core optical fiber

机译:温度对胶体PbSe量子点填充液芯光纤的温度影响

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The optical property variation induced by temperature change for PbSe quantum dot (QD)-filled hollow core fiber was investigated as a function of particle size, waveguide length, and doping concentration. The temperature coefficients of emission peak and intensity in QD-filled fiber were obviously size-dependent. The fiber filled with 4.5 nm PbSe QDs had better temperature stability in emission wavelength. The mechanism of the output loss in fiber was established, based on the thermal quenching of QD luminescence and the guided mode leakage arising from the temperature dependent refractive indexes of the fiber core and the cladding.
机译:研究了由温度变化引起的填充PbSe量子点(QD)的空心纤芯的光学性能变化与粒径,波导长度和掺杂浓度的关系。 QD填充光纤中发射峰的温度系数和强度明显与尺寸有关。填充4.5 nm PbSe QDs的光纤在发射波长方面具有更好的温度稳定性。基于QD发光的热猝灭和由纤芯和包层的温度相关折射率引起的导模泄漏,建立了光纤中输出损耗的机制。

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