2010-2013Ph.D, Material Science, Jiangsu University, China 2003-2006Master,Optical Engineering,Jinlin University, China 1999-2003Scholar,Electronic Science and Technology, Jinlin University, China |
1. Design of non imaging optical system.Thedesign of non imaging optical system mainly focuses on: the design of automotive lighting, lamps, digital projection systems and backlight systems. The main method is: according to the design requirements, usingoptical softwares such as Lighttools to modeling and optimization, finally meeting the requirements of the design model.  
Fig.1 Design example: (a) Optimization\PowerBalance (b)Receivers\SpatialLuminance  2.Ultrafast dynamics in metal films.The pump probe technique is used to study the motion of carriers in the metal films which excited by femtosecond laser pulses. Mainly focus on (1) the nonequilibrium heat transport time of electrons. (2) the temperature of both the electrons and the lattices in metal films.
Fig.2 (a)The transient reflectivity curves of platinum thin films (b)Electron and lattice temperature at copper film surface
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1. Study on multiple stable excitation mechanism of ultrafast dynamics in nano thin films(BK20150529), NSF of Jiangsu Province, 2016/1-2018/12 2. Prolongation of electron nonequilibrium thermal transport time in metal films under the femtosecond laser irradiation(2015M571678), Postdoctoral ScienceFoundationof China, 2015/7-2017/6 3. Study on nonequilibrium relaxation time of electrons in the films under the femtosecond laser irradiation(1401006B),Postdoctoral Science Foundation of Jiangsu Province, 2014/5-2016/4 4. Photon transmission characteristics in photonic crystal fiber pumped by femtosecond lase(13KJB510006)r,Natural science research project of universities in Jiangsu Provience,2013/8-2015/12
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1. XuXiaofang,LvLiu, Gao Yongfeng,Ren Naifei:The measurement and analysis of the nonequilibrium heat transport time of the electrons in the Co, Cr and Ag three kinds of metal films based on the transient reflection. Optik 2015, 126(20):2616–2618.(SCI) WOS:000365457700076 ISSN: 0030-4026 2. Xu Xiaofang,Lv Liu,Gao Yongfeng, Zhou Ming, Ren Naifei: Investigation of Ultrafast Reflectivity and Nonequilibrium Relaxation in Chromium Thin Films by Examining the Nonequilibrium Transient Thermoreflectance Twice. Laser Eng 2014, 29(1-2):1-7.(SCI)WOS:000343078600001ISSN:0898-1507 3. Xu Xiaofang, Gao Yongfeng, Lv Liu, Cao Xiangxiang,Ren Naifei, Zhou M: Research on Several Times of Abruptly Changes in the Ultrafast Transient Reflectivity in Co Films. Spectroscopy and Spectral Analysis 2013, 33(12):3278-3281.(SCI)WOS:000328710600023 ISSN: 1000-0593 4. Xu Xiaofang, Gao Yongfeng, Lv Liu, Zhou Ming, Ren Naifei: Ultrafast dynamics in NiFe alloy thin films by two times of transient reflection. Optik 2013, 124(20):4667-4669.(SCI)WOS:000325445100135ISSN: 0030-4026 5. Xu Xiaofang, Gao Yongfeng, Lv Liu, Ren Naifei, Zhou Ming, Guo Yujiao, Chen Jiaojiao, Sunxin: The study of ultrafast dynamics of cobalt films on different substrates. Journal of Functional Materials, 44: 3315-3318, 2013. (EI)Accession number:20140317209348 6. Xu Xiaofang, Gao Yongfeng, Zhou Ming, Ren Naifei: The study of the nonequilibrium last time of electrons in silver films based on FTTR. Journal of Functional Materials, 43: 2613-2614, 2012.(EI)Accession number:20125015795898 7. Xu Xiaofang, Wang Lijun, Zhou Ming: The Design and Research for the Shaping of the LDA.2011 International Conference on Electric Information and Control Engineering, ICEICE 2011 - Proceedings. 2011, 814-816. (EI)Accession number:20112714122074
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