倪凯副研究员 电话：　　
邮箱：ni.kai@sz.tsinghua.edu.cn办公地址：广东省深圳市西丽大学城清华大学深圳研究生院J楼102室
所属学科：仪器科学、光学工程



【个人简历】
1999.09-2003.07，清华大学，精密仪器系，工学学士
2003.09-2008.07，清华大学，精密仪器系，工学博士
2008.08-2011.04，清华大学深圳研究生院，工程学部，博士后
2011.04-至今，清华大学深圳研究生院，先进制造学部
【教学】
科学仪器
嵌入式系统设计及应用
【研究领域】
从事精密分析与测量领域的研究，主要包括微小型分析仪器（离子迁移谱、光谱、质谱等）、精密光电测量技术（光学测距、光栅尺）等。
质谱检测是在真空条件下，依据质荷比对带电离子进行分离和检测的技术。我们的研究工作主要围绕质谱仪的小型化展开，主要包括电离源、质量分析器、射频电源、微弱信号检测、数字信号处理等。离子迁移谱工作于大气压条件下，依据离子在背景气体中的迁移率差异对其进行分离和检测，既可作为独立的分析仪器，也可作为质谱的前级预分离系统。我们的研究工作主要围绕迁移管的设计与制作、离子门性能、新型离子检测方法等展开。
光学精密测距技术主要包括飞行时间法、相位法和干涉法，其中干涉法的测距精度最高，可达到纳米量级。传统干涉法只能做相对距离测量，存在一定局限性。我们基于飞秒激光频率梳光源，开展高精度的绝对距离测量技术研究，主要包括频率梳光源、光纤迈克尔逊干涉仪、高速信号采集及实时处理、误差分析等。目前已能做到60米距离范围内的绝对距离实时测量，精度1微米，速度2500次/秒。
【研究成果】
部分代表论文：
1. Qian Zhou, Xinghui Li, Kai Ni^*, Rui Tian, Jinchao Pang, Holographic fabrication of large-constant concave gratings for wide-range flat-field spectrometers with the addition of a concave lens, Optics Express, 2016, 24(2): 732-738.
2.Kai Ni^*, Jingran Guo, Zhou Yu, Like Cao, Quan Yu, Xiang Qian, Xiaohao Wang, A progressively reduced pretension method to fabricate Bradbury-Nielsen gates with uniform tension. Review of Scientific Instruments, 2015, 86(11).
3.Kai Ni^*, Jingran Guo, Guangli Ou, Xiaoguo Zhang, Quan Yu, Xiang Qian, Xiaohao Wang, Study of ion transmission for a linear mode Bradbury–Nielsen gate in ion mobility spectrometer. International Journal of Mass Spectrometry, 2015, 379: 75-79.
4.Guanhao Wu^*, Shilin Xiong, Kai Ni^*, Zebin Zhu, Qian Zhou, Parameter optimization of a dual-comb ranging system by using a numerical simulation method. Optics Express, 2015, 23(25): 32044-32053.
5.Kai Ni^*, Jingran Guo, Guangli Ou, Yu Lei, Quan Yu, Xiang Qian, Xiaohao Wang, A simple template-based transfer method to fabricate Bradbury-Nielsen gates with uniform tension for ion mobility spectrometry. Review of Scientific Instruments, 2014, 85(8).
6.Guanhao Wu^*#, Qian Zhou^#, Luofeng Shen, Kai Ni^*, Xianghui Zeng, Yang Li, Experimental optimization of the repetition rate difference in dual-comb ranging system, Applied Physics Express, 2014, 7, 106602.
7. Qiang Ma, Kai Ni, Qingsheng He, Liangcai Cao, Guofan Jin, Fast associative filtering based on two-dimensional discrete Walsh transform by a volume holographic correlator. Optics Express, 2009, 17(2): 838-843.
8. Kai Ni^*, Wei Ren, Zongyao Qu, Liangcai Cao, Qingsheng He, Guofan Jin, Phase-modulated multigroup volume holographic correlator. Optics Letters, 2008, 33(10): 1144-1146.
9.Kai Ni^*, Zongyao Qu, Liangcai Cao, Ping Su, Qingsheng He, Guofan Jin, Improving accuracy of multichannel volume holographic correlators by using a two-dimensional interleaving method. Optics Letters, 2007, 32(20): 2972-2974.
10.Kai Ni^*, Mingfei Xu, Qian Zhou, Hao Dong, Xinghui Li, Guanhao Wu, Implementation of a data processing platform for real-time distance measurement with dual-comb lasers. Proceedings of SPIE, 9623. 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, OIT 2015, 2015.05.17-05.19. Beijing, China: SPIE.
11.Kai Ni^*, Hao Dong, Qian Zhou, Mingfei Xu, Xinghui Li, Guanhao Wu, Interference peak detection based on FPGA for real-time absolute distance ranging with dual-comb lasers. Proceedings of SPIE, 9623. 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, OIT 2015, 2015.05.17-05.19. Beijing, China: SPIE.
12.Kai Ni^*, Guangli Ou, Xiaoguo Zhang, Zhou Yu, Quan Yu, Xiang Qian, Xiaohao Wang, Optimization of curved drift tubes for ultraviolet-ion mobility spectrometry. Proceedings of SPIE, 9623. 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, OIT 2015, 2015.05.17-05.19. Beijing, China: SPIE.
13.Kaitai Guo, Kai Ni^*, Guangli Ou, Xiaoguo Zhang, Quan Yu, Xiang Qian, Xiaohao Wang, Gaseous phase ion detection method based on laser-induced fluorescence for ion mobility spectrometer. Proceedings of SPIE, 9621. 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 2015.05.17-05.19. Beijing, China: SPIE.
14.Kai Ni^*, Yu Lei, Quan Yu, Jianan Li, Xiang Qian, Xiaohao Wang, Trace element analysis of aqueous samples by laser-induced breakdown spectroscopy based on pre-concentration of electrospray. Proceedings of SPIE, 9621. 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 2015.05.17-05.19. Beijing, China: SPIE.
15.Kai Ni^*, Xiang Yan, Quan Yu, Zu Hua Shi, Xin Qiong Lu, Xiao Hao Wang, Study on measuring the resonant frequency of air core transformer on mass spectrometer with a test coil. Applied Mechanics and Materials, 568-570. Measurement Technology and its Application III. 2014.
16.Dingfeng Liu, Kai Ni^*, Xiaoguo Zhang, Xiaohao Wang, Study on key parameters of FT-IMS based on simulation. Applied Mechanics and Materials, 568-570. Measurement Technology and its Application III. 2014.
17.Kai Ni^*, Wei Jing, Quan Yu, Dingfeng Liu, Xiang Yan, Lang Liu, Xiaohao Wang, Gang Jing, High-speed data transfer module design based on mass storage protocol for portable instruments. WIT Transactions on Information and Communication Technologies, 49. 2013 International Conference on Information Engineering, ICIE 2013. 2014. Hong Kong, China: WITPress.
【学术兼职】
现任中国振动工程学会动态测试技术专业委员会理事
【奖励荣誉】
2014年，北京市科学技术奖（一等奖）
2012年，教育部科技成果完成者证书
2008年，清华大学优秀博士学位论文
2008年，清华大学学术新秀
2004年，教育部科技成果完成者证书
2003年，获清华大学优良毕业生、北京市优秀毕业生