中国激光, 2015, 42 (2): 0205006, 网络出版: 2014-12-26
熔锥光纤渐逝波光场吸附半导体量子点技术研究
Research on the Technique of Optical Trapping Semiconductor Quantum-Dots Based on the Evanescent Field of Tapered Optical Fiber
量子光学 量子点薄膜 光学吸附 锥形光纤 渐逝波场 quantum optics quantum dots thin film optical trapping tapered optical fiber evanescent field
摘要
基于渐逝波光场对微纳粒子具有光吸附力的效应，提出了利用熔融拉锥光纤吸附沉积半导体量子点的实验研究。以波长为980 nm 的激光作为光源，在熔融拉锥光纤表面成功吸附沉积了高密度硫化铅(PbS)量子点薄膜。通过光抽运，在吸附沉积PbS 量子点的熔锥光纤中观测到PbS 量子点光致发光光谱，并实现了在1550 nm 波段的光放大，增益达6.8 dB。
Abstract
Based on the optical trapping micro-and nano-particles effect of the evanescent field, we propose to investigate the optical trapping technique for semiconductor quantum dots by using tapered optical fiber. With the laser at 980 nm wavelength as light source, the PbS quantum dots (QDs) are absorbed and deposited on the surface of the tapered fiber successfully. By optical pumping, the photoluminescence from the tapered fiber after trapping PbS QDs is observed, and a gain of 6.8 dB is obtained at 1550 nm wavelength band.
商娅娜, 石庆鹏, 庞拂飞, 倪晴燕, 陈振宜, 王廷云. 熔锥光纤渐逝波光场吸附半导体量子点技术研究[J]. 中国激光, 2015, 42(2): 0205006. Shang Yana, Shi Qingpeng, Pang Fufei, Ni Qingyan, Chen Zhenyi, Wang Tingyun. Research on the Technique of Optical Trapping Semiconductor Quantum-Dots Based on the Evanescent Field of Tapered Optical Fiber[J]. Chinese Journal of Lasers, 2015, 42(2): 0205006.
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