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超导纳米线单光子探测器件的单光子响应 被引量:10

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摘要 单光子探测技术是量子通信系统中量子密钥分发实现的关键技术之一.超导纳米线单光子探测技术是一种新型的单光子探测技术,相对于传统的半导体单光子探测器件具有高计数率、低暗计数等明显的优势.介绍了基于低温超导NbN超薄薄膜的超导纳米线单光子探测器件以及实验室超导单光子探测系统.对超导纳米线单光子探测器件的单光子响应脉冲特性进行了细致的分析和研究,讨论了测试系统带宽等参数与脉冲波形的关系.并利用电路模拟对超导单光子探测电信号波形进行了分析,模拟结果和实验结果具有很好的一致性.通过这些工作进一步理解超导单光子探测机理,为未来建立量子通信用超导纳米线单光子探测系统打下良好的基础.
出处 《科学通报》 EI CAS CSCD 北大核心 2009年第16期2416-2420,共5页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:60801046) 上海市科学技术委员会(编号:08dz1400702,08PJ1411200)资助项目
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同被引文献105

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