副教授

?联系方式：liuzhengy@mail.sysu.edu.cn
办公室：电子与信息工程学院楼503A
刘正勇，博士，中山大学“****”副教授。研究方向为光纤传感技术、感知信息智能分析、海洋信息感知及生物医学传感。近五年在上述领域已发表论文超过70篇，其中以第一或通信作者发表SCI/EI论文30余篇，包括Optics Letters,?Optics Express, Photonics Research, Journal of Lightwave Technology, OFC, OFS等国际知名学术期刊及会议，同时受邀撰写2篇Invited Paper, 2部英文专著的章节，H-index 17；研究成果获得美国光学学会OSA亮点报道，在OSA新闻网站首页报道，并获多家媒体转载，包括OPN, Laser Focus World, Science Daily等。

学术兼职和社会服务:
MDPI Sensors (SCI, IF:3.031), Topic Editor
ITU/WMO/UNESCO-IOC Joint Task Force“SMART Cables”,?专家组成员
Opt. Letters, Opt. Express, IEEE/OSA J. Light. Technol., Appl. Opt.等知名期刊审稿人
第26届Optoelectronics and Communications Conference（OECC）分会TPC Co-chair

教育经历:
2018-2019，香港理工大学，电机工程学系，高级研究员（Senior Research Fellow）
2015-2017，香港理工大学，电机工程学系，博士后研究员（Postdoctoral Fellow）
2011-2015，香港理工大学，电机工程学系，光电信息，博士，导师：Prof. Hwa-Yaw Tam
2006-2010，浙江大学，光电科学与工程学院，信息工程，学士（竺可桢学院工程教育高级班）

授课课程:
光波导与光纤（本科）
光纤传感与测量（本科）
电路理论基础实验（本科）

研究方向:
高性能新型光信息传感器件及系统
海洋信息感知与融合
机器学习分析及信号处理
特种光纤/器件设计及制备
医学传感应用
招生需求：每年招2-3名硕士研究生，诚招信息与通信，光学工程，电子信息，海洋工程信息专业优秀本科、硕士和博士加入研究团队；通过开展明确的科研工作训练，促进同学们独立思考、发现问题并解决问题能力的提升，依托光电材料与技术国家重点实验室光传感研究平台以及南方海洋科学与工程广东省实验室（珠海），在研究学习过程中，更有机会与国内外著名课题组和业界顶尖企业开展交流和合作，扩展同学们的视野和就业机会。真诚欢迎有志在“光传感器件及系统应用领域”发展的同学加入研究小组，以基础研究为利剑，力争把技术在应用中落地。

科研项目:
国家自然科学基金委-广东省联合基金集成项目，基于光纤新模态的海洋信息感知与大容量安全通信融合技术研究，2021-2024，课题负责人，负责经费118万。
科技部重点研发项目课题，粤港澳大湾区超级光网络，2021-2023，中大研究任务负责人，负责经费1111万。
广州市基础与应用基础研究项目，面向海浪高度监测的新型光纤压力传感器研究，2021-2023，主持，5万。
国家自然科学青年基金，基于新型边孔微结构光纤的加速度传感器及应用研究，2020-2022，主持，25万。
国家自然科学基金面上项目，面向微创手术的新型光纤传感器及应用研究，2020-2023，参与，负责经费20万。
科技部重点研发项目，基于光纤新模态的超大容量新型光纤信息传输处理基础理论及应用研究，2019-2024，参与
中山大学“****”引进人才启动项目，主持。
香港UGC-GRF项目，Smart Cochlear Implants Integrated with Optical Fibre Sensors，2020-2022，参与
国家轨道交通电气化与自动化工程技术研究中心香港分中心研究项目，Novel Optical fiber for the development of optical fiber accelerometer with performance suitable for high-speed railway applications，2015-2018，参与
香港RGC-GRF?项目，Novel Laser-heated Fiber-optic Gas and Liquid Flow Sensors，2014-2016，参与

代表性科研成果:
代表学术论文：（*为通信作者）
专著章节：
Zhengyong Liu*, Hwa-Yaw Tam, “Photonic crystal fiber pressure sensors”, Chapter 11 in the book of “Computational Photonic Sensors”, edited by Mohamed Hameed and Salah Obayya, published by Springer Publisher, Print ISBN 978-3-319-76555-6, Jun. 14, 2018.?
Zhengyong Liu*,?Hwa-Yaw Tam, “Fabrication and sensing applications of special microstructured optical fibers”, Chapter 1 in the book of “Selected Topics on Optical Fiber Technologies and Applications”, edited by Fei Xu, published by Intech, Print ISBN 978-953-51-3813-6, Feb. 14, 2018.?
期刊论文：
? ? ? ?2021：
Rui Min, Zhengyong Liu*, Luis Pereira, Chenkun Yang, Qi Sui, Carlos Marques, "Optical fiber sensing for marine environment and marine structural health monitoring: A review",?Optics and Laser Technology,?140,?107082, 2021.
Bin Zhou, Yilong Zeng, Barerem-Melgueba Mao, Dinusha Serandi Gunawardena*, Zhengyong Liu*, Yuk Ting Ho, Hwa-Yaw Tam, “Excellent Thermal Stability of Optical Fiber Grating Inscribed on Thermosetting Silicone”, J. Light. Technol. 39(5), 1483-1488, 2021.
? ? ? 2020：
Jingshun Pan, Bin Zhang,?Zhengyong Liu, Jiaxin Zhao, Yuanhua Feng, Lei Wan, and Zhaohui Li, “?Microbubble resonators combined with a digital optical frequency comb for high-precision air-coupled ultrasound detectors”,??Photonics Research, 8(3), 303, 2020.
Jingxian Cui, Dinusha Serandi Gunawardena*,?Zhengyong Liu*, Zhiyong Zhao and Hwa-Yaw Tam, “All-fiber two-dimensional inclinometer based on Bragg gratings inscribed in a seven-core multi-core fiber”,?IEEE/OSA Journal of Lightwave Technology, 38(8), 2516-2522,?2020.?
Dinusha Serandi Gunawardena*, On Kit Law,?Zhengyong Liu*, Xiaoxuan Zhong, Yuk-Ting Ho, and Hwa-Yaw Tam, “Resurgent regenerated fiber Bragg gratings and thermal annealing techniques for ultra-high temperature sensing beyond 1400°C”, Optics Express, 28(7), 10595-10608,?2020.
Anand Shrivastav, Dinusha Gunawardena*,?Zhengyong Liu*, and Hwa-Yaw Tam, “Microstructured optical fiber based Fabry–Pérot interferometer as a humidity sensor utilizing chitosan polymeric matrix for breath monitoring”, Scientific Reports, 10,?6002, 2020.
?Zhuo Wang, Jiajing Tu,?Zhengyong Liu, Changyuan Yu, and Chao Lu, “?Design of Weakly Coupled Two-Mode Hollow-Core Antiresonant Fiber With Low Loss”,?Journal of Lightwave Technology, vol. 38, no. 4, pp.??864-874, (2020).
Lin Htein, Dinusha Serandi Gunawardena, Zhengyong Liu, and Hwa-Yaw Tam, “Two semicircular-hole fiber in a Sagnac loop for simultaneous discrimination of torsion, strain and temperature”, Opt. Express, 28(23), pp. 33841-33853, 2020.
Yu Wang, Yan Zhou, Zhengyong Liu, Daru Chen, Chao Lu, and Hwa-Yaw Tam, “Sensitive Mach–Zehnder interferometric sensor based on a grapefruit microstructured fiber by lateral offset splicing”, Opt. Express, 28(18), pp. 26564-26571, 2020.
Yilong Zeng, Dinusha Serandi Gunawardena, Bin Zhou*, Zhengyong Liu, and Hwa-Yaw Tam, “All-optical fiber filter based on an FBG inscribed in a silica/silicone composite fiber”, Opt. Lett. 45(17), pp. 4831-4834, 2020
Ali Najafzadeh*, Dinusha Serandi Gunawardena*, Zhengyong Liu, Ton Tran, Hwa-Yaw Tam, Jing Fu and Bernard K. Chen, “Application of Fibre Bragg Grating Sensors in Strain Monitoring and Fracture Recovery of Human Femur Bone”, Bioengineering, 7, 98, 2020.
Jiajing Tu, Shecheng Gao, Zhuo Wang, Zhengyong Liu, Wei Li, Cheng Du, Weiping Liu, Zhaohui Li, Changyuan Yu, Hwayaw Tam, and Chao Lu, “Bend-Insensitive Grapefruit-Type Holey Ring-Core Fiber for Weakly-Coupled OAM Mode Division Multiplexing Transmission”, J. Light. Technol., 38(16), 4497-4503, 2020.
F. Tan, W. Lyu, S. Chen, Z. Liu, and C. Yu, "Contactless vital signs monitoring based on few-mode and multi-core fibers," Opto-Electronic Adv. 3, 190034–190034 (2020).
? ? ? 2019：
Fengze Tan, Shuyang Chen, Weimin Lyu,?Zhengyong Liu*, Changyuan Yu*, Chao Lu, and Hwa-Yaw Tam, “Non-invasive human vital signs monitoring based on twin-core optical fiber sensors”, Biomedical Optics Express, 10(11),??5940-5951, 2019.
Zhengyong Liu*, Lin Htein, Weng-Hong Chung, Dinusha Gunawardena, Chao Lu, Kang-Kuen Lee and Hwa-Yaw Tam, “Novel accelerometer realized by a polarization-maintaining photonic crystal fiber for railway monitoring a pplications”, Optics Express, vol. 27, no. 15, pp. 21597-21607, 2019. (获OSA, OPN, Science Daily, Laser Focus World等新闻亮点报道）
Jiajing Tu,?Zhengyong Liu*, Shecheng Gao, Zhuo Wang, Jianbo Zhang, Bin Zhang, Jianping Li, Weiping Liu, Hwa-Yaw Tam, Zhaohui Li, Changyuan Yu*, Chao Lu, "Ring-core fiber with negative curvature structure supporting orbital angular momentum modes", Optics Express, 27(15), pp. 20358-20372, 2019.?
Jingxian Cui,?Zhengyong Liu*, Dinusha Serandi Gunawardena, Zhiyong Zhao, and Hwa-Yaw Tam, "Two-dimensional vector accelerometer based on Bragg gratings inscribed in a multi-core fiber", Optics Express, 27(15), pp. 20848-20856, 2019.?
Jitendra Narayan Dash,?Zhengyong Liu*, Dinusha Serandi Gunawardena and Hwa-Yaw Tam, "Fabry-Perot cavity based contact force sensor with high precision and broad operational range", Optics Letters, 44(14), pp. 3546-3549, 2019.?
Zhengyong Liu*,?Zhi Feng Zhang, Hwa-Yaw Tam and Xiaoming Tao*, "Multifunctional Smart Optical Fibers: Materials, Fabrication, and Sensing Applications", Photonics, vol. 6, no. 2, pp. 48, 2019.?
Lin Htein,?Zhengyong Liu*, Dinusha Gunawardena, and Hwa-Yaw Tam, "Single-ring suspended fiber for Bragg grating based hydrostatic pressure sensing", Optics Express, 27(7), pp. 9655-9664,?2019. (获Advances In Engineering新闻报道).
? ? ? 2018：
Fengze Tan,?Zhengyong Liu*, Jiajing Tu, Changyuan Yu*, Chao Lu, and Hwa-yaw Tam, “Torsion sensor based on inter-core mode coupling in seven-core fiber”,?Optics Express,?26(16), 19835-19844, (2018).?
Liyang Shao,?Zhengyong Liu*,?Jie Hu, Dinusha Gunawardena, and Hwa-Yaw Tam, “Optofluidics in Microstructured Optical Fibers”,?Micromachines, 9(4), 145, (2018).?
Zhengyong Liu, Lin Htein, Kang-Kuen Lee, Kin-Tak Lau and Hwa-Yaw Tam, “Large dynamic range pressure sensor based on Two Semicircle-Holes Microstructured Fiber”,?Scientific Reports, vol. 8, no.1, pp. 65, (2018).
Zhiyong Zhao,?Zhengyong Liu, Ming Tang, Songnian Fu, Liang Wang, Nan Guo, Chao Jin, Hwa-Yaw Tam, and Chao Lu, “Robust in-fiber spatial interferometer using multicore fiber for vibration detection”, Optics Express, 26(23), 29629-29637, (2018).
Jiajing Tu, Bin Zhang,?Zhengyong Liu, Xian Zhou, Keping Long, Zhaohui Li, Chao Lu, and Changyuan Yu, “Chalcogenide-glass nested anti-resonant nodeless fibers in mid-infrared region”, IEEE Journal of Lightwave Technology, 36(22),?5244-5253, (2018).
Dejun Liu, Rahul Kumar, Fangfang Wei, Wei Han, Arun Mallik, Jinhui Yuan, Chongxiu Yu, Zhe Kang, Feng Li,?Zhengyong Liu, Hwa Yaw Tam, Gerald Farrell, Yuliya Semenova, Qiang Wu, “High sensitivity twist sensor based on partial silver coated hollow core fiber structure”,?IEEE Journal of Lightwave Technology, vol. 36, May (2018).?
? ? ? 2017：
(Invited Paper) Zhengyong Liu, Hwa-Yaw Tam, Lin Htein, Ming-Leung Vincent Tse, Chao Lu, “Microstructured Optical Fiber Sensors”,?IEEE/OSA Journal of Lightwave Technology, vol. 35, no. 16, pp. 3425-3439, (2017).?
Zhengyong Liu, Lin Htein, Lun-Kai Cheng, Quincy Martina, Rob Jansen, and Hwa-Yaw Tam, “Highly sensitive miniature fluidic flowmeter based on an FBG heated by Co²⁺-doped fiber”,?Optics Express, vol. 25, no. 4, pp. 4393-4402, (2017).
Bin Zhou, Liang Wang, Lin Htein,?Zhengyong Liu, Xiaolu Chen, Hwa-Yaw Tam, and Chao Lu, “Highly sensitive small pressure monitoring using hyperelastic silicone-cladding/silica-core composite optical fiber”, IEEE Photonics Journal, vol. 9, no. 6, pp. **, (2017).?
? ? ? 2016：
(Invited Paper) Zhengyong Liu, Hwa-Yaw Tam, "Industrial and medical applications of fiber Bragg gratings,"?Chinese Optics Letters, 14(12), pp. 120007- (2016). （50th Anniversary of the Invention of Optical Fiber Communications特刊）
Jie Wang,?Zhengyong Liu, Shaorui Gao, A. Ping Zhang, Yong-hang Shen, Hwa-Yaw Tam, and S. Member, "Fiber-Optic Anemometer Based on Bragg Grating Inscribed in Metal-Filled Microstructured Optical Fiber,"?IEEE Journal of Lightwave Technology, vol. 34, no. 21, pp. 4884–4889 (2016).
Wei-Qiang Feng,?Zhengyong Liu, Hwa-Yaw Tam, Jian-Hua Yin, “The pore water pressure sensor based on Sagnac interferometer with polarization-maintaining photonic crystal fiber for the geotechnical engineering,”?Measurement, vol. 90, pp. 208–214, (2016).
? ? ? 2015及以前；
Guancheng Gu,?Zhengyong Liu, Fanting Kong, Hwayaw Tam, Ramesh K. Shori, and Liang Dong, “Highly efficient ytterbium-doped phosphosilicate fiber lasers operating below 1020nm,”?Optics Express,?vol. 23, no. 14, pp. 17693–17700, (2015).
Zhengyong Liu, Chuang Wu, Ming Leung Vincent Tse, and Hwa-Yaw Tam, “Fabrication, Characterization, and Sensing Applications of a High-Birefringence Suspended-Core Fiber,”?Journal of Lightwave Technology, vol. 32, no. 11, pp. 2113–2122, (2014).
Zhengyong Liu,?Ming-Leung Vincent Tse, A. Ping Zhang, and Hwa-Yaw Tam, “Integrated microfluidic flowmeter based on a micro-FBG inscribed in Co2+-doped optical fiber”,?Optics Letters, vol. 39, no. 20, pp. 5877-5880, (2014).?
Ming-Leung Vincent Tse, Zhengyong Liu, Lok-Hin Cho, Chao Lu, Ping-Kong Alex Wai, and Hwa-Yaw Tam. "Superlattice Microstructured Optical Fiber." Materials 7, no. 6, 4567-4573, (2014).
Chuang Wu, Ming-Leung Vincent Tse, Zhengyong Liu, Bai-Ou Guan, A. Ping Zhang, Chao Lu, and Hwa-Yaw Tam, “In-line microfluidic integration of photonic crystal fiber as a highly sensitive refractometer”, Analyst, 139, 5422-5429, (2014).
Chuang Wu, Zhengyong Liu, A. Ping Zhang, Bai-Ou Guan, and Hwa-Yaw Tam, “In-line open-cavity Fabry–Pérot interferometer formed by C-shaped fiber for temperature-insensitive refractive index sensing”, Optics Express, vol. 22, no. 18, pp. 21757-21766, (2014).
Chuang Wu, Ming-Leung Vincent Tse, Zhengyong Liu, Bai-Ou Guan, Chao Lu, and Hwa-Yaw Tam, “In-line microfluidic refractometer based on C-shaped fiber assisted photonic crystal fiber Sagnac interferometer”. Optics Letters, vol. 38, no. 17, p. 3283, Aug. (2013).
Khurram K. Qureshi, Zhengyong Liu, Hwa-Yaw Tam, and M. Fahad Zia, “A strain sensor based on in-line fiber Mach-Zehnder interferometer in twin-core photonic crystal fiber,” Optics Communications 309, 68-70, (2013).
Zhengyong Liu, Chuang Wu, Ming Leung Vincent Tse, Chao Lu, and Hwa-Yaw Tam, “Ultrahigh birefringence index-guiding photonic crystal fiber and its application for pressure and temperature discrimination,” Optics Letters, vol. 38, no. 9, p. 1385-1387, Aug. (2013).
Zhengyong Liu, Ming Leung Vincent Tse, Chuang Wu, Daru Chen, Chao Lu, and Hwa-Yaw Tam, “Intermodal coupling of supermodes in a twin-core photonic crystal fiber and its application as a pressure sensor,” Optics Express, vol. 20, no. 19, pp. 21749–21757, (2012).
Chi-Fung Pun, Zhengyong Liu, Ming Leung Vincent Tse, Xin Cheng, Xiao Ming Tao, and Hwa-Yaw Tam, “Side-Illumination Fluorescence Dye-Doped-Clad PMMA-Core Polymer Optical Fiber: Potential Intrinsic Light Source for Biosensing,” IEEE Photonics Technology Letters, vol. 24, no. 11, pp. 960–962, (2012).
Chuang Wu, Zhengyong Liu, Kit-Man Chung, Ming Leung Vincent Tse, Florence Y. M. Chan, Alan Pak Tao Lau, Chao Lu, and Hwa-Yaw Tam, “Strong LP01 and LP11 mutual coupling conversion in a two-mode fiber Bragg grating,” IEEE Photonics Journal, vol. 4, no. 4, pp. 1080–1086, (2012).
Kit-Man Chung, Zhengyong Liu, Chao Lu, and Hwa-Yaw Tam, “Highly Sensitive Compact Force Sensor Based on Microfiber Bragg Grating,” IEEE Photonics Technology Letters, vol. 24, no. 8, pp. 700–702, (2012).
Kit-Man Chung, Zhengyong Liu, Chao Lu, and Hwa-Yaw Tam, “Single Reflective Mode Fiber Bragg Grating in Multimode Microfiber,” IEEE Photonics Journal, vol. 4, no. 2, pp. 437–442, (2012).
邀请报告及国际会议论文：
(Invited talk)?Zhengyong Liu*,“特殊光纤传感技术的工程化应用”，2020 中国光纤传感论坛，武汉，11月，2020.
(Invited talk)?Zhengyong Liu*, "Specialty optical fiber Bragg gratings for medical sensing applications", the 12th International Photonics and OptoElectronics Meetings (POEM 2019), Wuhan, Nov. 11-14, 2019.?
(Invited talk)?Zhengyong Liu*, "Industrial and biomedical sensing applications of microstructured optical fibers", OFS-China, Wuhan, April 23-25, 2019.
(Invited talk)?Zhengyong Liu*, "Industrial and biomedical applications of specialty optical fibers", The 17th International Conference on Optical Communications and Networks (ICOCN), Zhuhai, Nov. 16-19, 2018.?
Dinusha S. Gunawardena,?Zhengyong Liu*, On kit Law, Xiaoxuan Zhong, Bin Zhou, Hwa-Yaw Tam, “FBG Fabrication and Characterization in Silica/Silicone Hybrid Microstructured Optical Fibers”, EWOFS, Cyprus, 2019.?
Jingxian Cui,?Zhengyong Liu*, Dinusha Serandi Gunawardena and Hwa-Yaw Tam, “Omnidirectional vibration sensor based on fiber Bragg grating in a seven-core fiber”, EWOFS, Cyprus, 2019.?
Arvind N Vadivelu,?Zhengyong Liu, Dinusha S Gunawardena, Bernard Chen, Hwa-Yaw Tam, Stephen O'Leary, Denny Oetomo, “Integrated Force Sensor in Cochlear Implants for Hearing Preservation Surgery”, EMBC, Berlin, 2019.
(Student Best Paper Award)?Ali Najafzadeh, Ton Tran, Bernard K. Chen, Jing Fu, Dinusha Serandi Gunawardena,?Zhengyong Liu, Hwa-Yaw Tam, “Healing Assessment of Fractured Femur by Strain Measurement Using Fibre Bragg Grating Sensors”, IMS-ISSI’19, 2019.?
?Fengze Tan,?Zhengyong Liu*,?Shuyang Chen, Changyuan Yu, “?Vital signs monitoring using twin core fiber- based sensor”, OECC,??WC3-2, 2019.
Dinusha Serandi Gunawardena,?Zhengyong Liu*, On Kit Law, Chao Lu, Hwa-Yaw Tam, “Thermal Regeneration of Fiber Bragg Gratings in Six-Hole Microstructured Optical Fibers”,?Proc. SPIE, 24^th?Int. Conf. Opt. Fiber Sensors?(Sep. 26), Lausanne, Switzerland, (2018).
Lin Htein,?Zhengyong Liu*, Weng-Hong Chung, David Au, Chao Lu, and Hwa-Yaw Tam, “Accelerometer Based on Polarization-Maintaining Fiber in Sagnac Interferometer”,?24^th?Int. Conf. Opt. Fiber Sensors?(Sep. 26), Lausanne, Switzerland, (2018).
Fengze Tan,?Zhengyong Liu*, Jiajing Tu, Changyuan Yu, Chao Lu, and Hwa-Yaw Tam, “Stable Torsion Sensor with Tunable Sensitivity and Rotation Direction Discrimination Based on a tapered Trench-Assisted Multi Core Fiber”, International Conference of Optical Fiber Communication (OFC), W1K.6, (2018).
Zhengyong Liu, Lin Htein, and Hwa-Yaw Tam, “Ultrasensitive pressure sensor realized with two-semicircle hole fiber based on Sagnac interferometer”,?Photonics@SG (Combine the 12^th?CLEO-PR, 22^nd?OECC, 5^th?PGC), (2017).?
Zhengyong Liu, Lin Hteina, Lun-Kai Cheng, Quincy Martina, Rob Jansen, and Hwa-Yaw Tam, “Miniature FBG-based fluidic flowmeter to measure hot oil and water”,?25th International Conference on Optical Fiber Sensors, ** (April 23, 2017), vol. 10323, **, (2017).
Zhengyong Liu, Lin Htein, Hwa-Yaw Tam, “Flow sensor based on heated-FBG by multiple pump lasers”, in?Photonics and Fiber Technology Congress 2016?(ACOFT, BGPP, NP), p. BM4B.2, 2016.
Zhengyong Liu, Guancheng Gu, Joshua Parsons, Monica Kalichevsky-Dong, Liang Dong, Hwa-Yaw Tam, “Distributed Bragg Reflector Fiber Laser Based on a clad-pumped Double-Clad Photosensitive Er / Yb Co-doped Fiber,”?Adv. Photonics 2016?(IPR, NOMA, Sensors, Networks, SPPCom, SOF), Vacouver, Canada, p. SoTu1G.5, 2016.
专利：
刘正勇，谭旨敬，钟永康, “基于SAGNAC干涉仪的光纤加速度计及振动检测装置”, (已授权）
刘正勇, 谭旨敬，钟永康, “光纤触觉传感器及传感阵列”（已授权）
涂佳静，刘正勇，高社成, 刘伟平, 李朝晖,“一种支持多个轨道角动量模式的反谐振环形光纤”，(已授权)
Zhengyong Liu et al, “Medical Device and System and Method for Guiding Positioning of Same”