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| 1 | NIR-II ?uorescence in vivo confocal microscopy with aggregation-induced emission dots显示文摘Significantly reduced tissue scattering of fluorescence signals in the second near-infrared(NIR-Ⅱ,1,000–1,700 nm)spectral region offers opportunities for large-depth in vivo bioimaging.Nowadays,most reported works concerning NIR-II fluorescence in vivo bioimaging are realized by wide-field illumination and 2D-arrayed detection(e.g.,via InGaAs camera),which has high temporal resolution but limited spatial resolution due to out-of-focus signals.Combining NIR-II fluorescence imaging with confocal microscopy is a good approach to achieve high-spatial resolution visualization of biosamples even at deep tissues.In this presented work,a NIR-II fluorescence confocal microscopic system was setup.By using a kind of aggregation-induced emission(AIE)dots as NIR-II fluorescent probes,800 lm-deep 3D in vivo cerebrovascular imaging of a mouse was obtained,and the spatial resolution at 700 lm depth could reach 8.78 lm.Moreover,the time-correlated single photon counting(TCSPC)technique and femtosecond laser excitation were introduced into NIR-II fluorescence confocal microscopy,and in vivo confocal NIR-II fluorescence lifetime microscopic imaging(FLIM)of mouse cerebral vasculature was successfully realized. | Wenbin Yu Bing Guo Hequn Zhang Jing Zhou Xiaoming Yu Liang Zhu Dingwei Xue Wen Liu Xianhe Sun Jun Qian | 2019 | Science Bulletin2019，64，6： | 10 |
| 2 | 时间相关单光子计数光谱方法──Ⅰ.时间统计特性显示文摘本文用随机点过程理论分析了微弱光场作用下光子检测计光电子时间统计特性,讨论了时间相关单光子计数(TCSPC)理想工作条件,简述了实际TCSPC系统若干不理想因素。 | 林久令 | 1996 | 光谱学与光谱分析1996，16，6： | 4 |
| 3 | 皮秒时间相关单光子计数光谱仪的研制显示文摘研制的皮秒时间相关单光子计数(TCSPC)光谱仪采用了具有分光时间弥散动态和静态补偿特性的光栅分光系统,利用多道谱分析仪开设时间窗口,测量时间分辨光谱。给出了光谱仪的原理和总体方案,介绍了系统的集成和工作流程。通过各种标准样品的试验数据分析和对比,得出系统具有最高的灵敏度—单光子计数,时间分辨率达到8.8ps。 | 张秀峰 宋克菲 赵海波 韩炳冬 林久令 | 2004 | 光电子.激光2004，15，1： | 3 |
| 4 | 超导纳米线单光子探测系统的时间抖动显示文摘超导纳米线单光子探测(SNSPD)器件具有较低的时间抖动特性,可以实现低误码率的QKD和高精度的激光测距。文中对超导纳米线单光子探测系统的时间抖动进行了详细的分析和测量,分析了SNSPD系统各部分对系统抖动的贡献。使用时间相关的单光子计数技术(TCSPC)和示波器的抖动分析软件,分别测量了SNSPD系统的时间抖动,比较了两种方法的优劣。在两种测量方法下,系统总的时间抖动分别约为42ps和31ps,计算后得到单光子探测器件的抖动约为25ps。发现放大器的性能对系统时间抖动影响明显。通过使用不同放大器比较分析了测量得到的时间抖动。 | 张文星 陈思井 刘登宽 尤立星 | 2013 | 低温与超导2013，41，4： | 2 |
| 5 | Dynamic time-correlated single-photon counting laser ranging显示文摘We demonstrate a photon counting laser ranging experiment with a four-channel single-photon detector(SPD). The multi-channel SPD improve the counting rate more than 4×10~7 cps, which makes possible for the distance measurement performed even in daylight. However, the time-correlated single-photon counting(TCSPC) technique cannot distill the signal easily while the fast moving targets are submersed in the strong background. We propose a dynamic TCSPC method for fast moving targets measurement by varying coincidence window in real time. In the experiment, we prove that targets with velocity of 5 km/s can be detected according to the method, while the echo rate is 20% with the background counts of more than 1.2×10~7 cps. | 彭欢 王煜蓉 孟文东 颜佩琴 李召辉 李辰 潘海峰 吴光 | 2018 | Optoelectronics Letters2018，14，2： | 2 |
| 6 | 基于时间相关单光子计数的穿透成像激光雷达研究(特邀)显示文摘激光雷达是一种能够快速获取目标三维信息的光学传感器,凭借精确定位与高效识别能力,其在军事侦察、无人驾驶、空间交会对接等领域发挥着越来越重要的作用。然而在浓雾、烟尘、海水等复杂的气候或环境下,传输介质对光场的强烈散射作用会造成传统激光雷达接收信号的严重退化,致使其性能迅速降低,甚至根本无法正常使用。针对该类环境下接收信号的退化特性,首先建立了Monte Carlo的Mie散射瞬态光场传输模型,接着通过计算机模拟仿真了传输光场的时域分布规律,针对该规律研究了时域信号去散射效应的滤波算法,最后在实验室搭建了基于时间相关单光子计数的穿透成像激光雷达系统,开展了雾气模拟环境下的成像实验,结果验证了该穿透成像激光雷达系统的处理方法对目标图像重构质量的提高具有较好的效果。该研究为激光雷达在复杂散射环境中的进一步应用提供了基础。 | 乔凯 杨杰 靳辰飞 | 2022 | 红外与激光工程2022，51，8： | 1 |
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