Zijun Liu

Professor

Laboratory of Infrared Materials and Devices, Ningbo University,

Ningbo 315211, China

Email: liuzijun@nbu.edu.cn

EDUCATION

PhD Optical engineering, Huazhong University of Science and Technology, China, 2014

BSc Optoelectronics, University of Jinan, China, 2009

WORK EXPERIENCE

2014/07-Present, Assistant/Associate Professor/Professor, Ningbo University

2018/12-2019/12, Visiting Scholar, University of Rennes 1, France.

RESEARCH AREAS AND DIRECTIONS

[1] [Composition-Structure-Property Relationship of Glasses];

[2] [Optical Glasses];

[3] [Optical Fibers];

[4] [Infrared Glass and Infrared Optical System];

[5] [Infrared Fibers for IR Optics and laser Applications];

PUBLICATIONS

List of Research Paper Published in the last 5 Years

[1] Xia Kelun, Guan Yongnian, Jia Guang, Gu Jierong, Wu Miaomiao, Gu Chenjie, Wang Rongping, Liu Zijun*, Shen Xiang. Network structure and property evolution of GexAsySe1-x-y glasses: Towards specialized functional glasses [J]. Journal of Alloys and Compounds, 2025, 1010: 178242. (doi:https://doi.org/10.1016/j.jallcom.2024.178242)

[2] Wu Yan, Duan Kerong, Wang Qiangqiang, Chen Xiaodong, Guan Yongnian, Xia Kelun, Dai Shixun, Shen Xiang, Wang Xunsi, Liu Zijun*. Fabrication of large-mode area multi-core mid-infrared photonic crystal fiber with bending resistance [J]. Optics & Laser Technology, 2025, 186: 112648. (doi:10.1016/j.optlastec.2025.112648)

[3] Guan Yongnian, Xia Kelun, Gu Zhengxiang, Yan Senlin, Chen Xiaodong, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Gradient refractive index chalcogenide lens for lightweight infrared dual-band imaging systems [J]. Optics Express, 2025, 33(23): 48531-48540. (doi:10.1364/OE.577730)

[4] Duan Kerong, Guan Yongnian, Wang Qiangqiang, Wu Yan, Chen Xiaodong, Xia Kelun, Wu Yu, Xu Weisheng, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Reducing fiber scattering loss through hot-diffusion: a study on eliminating core–cladding interface defects [J]. Optics Letters, 2025, 50(8): 2582-2585. (doi:10.1364/OL.559151)

[5] Chen Xiaodong, Yan Senlin, Wu Yan, Jia Guang, Xia Kelun, Guan Yongnian, Shen Xuni, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Fabrication and performance of high refractive index achromatic gradient index chalcogenide glass [J]. Optics Express, 2025, 33(4): 7841-7851. (doi:10.1364/OE.555911)

[6] Xia Kelun, Jia Guang, Guan Yongnian, Gu Jierong, Wu Miaomiao, Gu Zhengxiang, Gu Chenjie, Xu Tiefeng, Yang Zhiyong, Ren Heqi, Wang Changlong, Liu Zijun*, Shen Xiang. Thermal diffusion preparation and rebonding behavior of Ge20Se80-xTex infrared gradient glass [J]. Ceramics International, 2024, 50(8): 13318-13326. (doi:10.1016/j.ceramint.2024.01.244)

[7] Liang Yachen, Wang Xiange, Gu Zhengxiang, Guan Yongnian, He Lelu, Xia Kelun, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. High Extinction-Ratio and Near-Zero Dispersion Chalcogenide Polarization Maintaining Photonic Crystal Fibers in Mid-Infrared [J]. Journal of Lightwave Technology, 2024, 42(16): 5691-5697. (doi:10.1109/jlt.2024.3399162)

[8] Zhang Jingwei, Guan Yongnian, Xia Kelun, Jia Guang, Gu Jierong, Yang Zhiyong, Liu Zijun*, Shen Xiang. Mechanical properties of SPS sintered chalcogenide glass-ceramics with externally doped crystals [J]. Ceramics International, 2023, 49(5): 8032-8038. (doi:10.1016/j.ceramint.2022.10.321)

[9] Xia Kelun, Gu Jierong, Wu Miaomiao, Jia Guang, Zhang Jingwei, Gu Zhengxiang, Zheng Wenfeng, Yang Zhiyong, Liu Zijun*, Shen Xiang. Structure and property evolution of Ag-doped GexAsySe1-x-y and its potential in infrared optics [J]. Ceramics International, 2023, 49(9): 13783-13789. (doi:10.1016/j.ceramint.2022.12.256)

[10] Liang Yachen, Gu Zhengxiang, Guan Yongnian, He Lelu, Xia Kelun, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Low-loss chalcogenide microstructured optical fibers prepared by eliminating interfaces defects [J]. Optics Express, 2023, 31(19): 30682-30692. (doi:10.1364/oe.495937)

[11] He Lelu, Liang Yachen, Guan Yongnian, Gu Zhengxiang, Xia Kelun, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Large mode-area all-solid anti-resonant fiber based on chalcogenide glass for mid-infrared transmission [J]. Optics Express, 2023, 31(5): 8975-8986. (doi:10.1364/oe.480504)

[12] Guan Yongnian, Xia Kelun, He Lelu, Gu Zhengxiang, Liang Yachen, Zhang Jingwei, Gui Yiming, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Preparation and refractive index characterization of chalcogenide glasses with gradient refractive index [J]. Journal of the American Ceramic Society, 2023, 106(4): 2288-2297. (doi:10.1111/jace.18928)

[13] Gu Zhengxiang, Liang Yachen, Xia Kelun, Guan Yongnian, He Lelu, Wang Xunsi, Dai Shixun, Shen Xiang, Liu Zijun*. Chalcogenide GRIN glasses with high refractive index and large refractive index difference for LWIR imaging [J]. Optics Express, 2023, 31(22): 37162-37173. (doi:10.1364/oe.503750)

[14] Zhang Chunqiu, Gui Yiming, Xia Kelun, Jia Guang, Liu Cuiping, Zhang Jingwei, Li Jialin, Yang Zhiyong, Liu Zijun*, Shen Xiang. Preparation of infrared axial gradient refractive index lens based on powder stacking and the sintering thermal diffusion method [J]. Optical Materials Express, 2022, 12(2): 584-592. (doi:10.1364/ome.448208)

[15] Gui Yiming, Zhang Xusheng, Xia Kelun, Gan Haotian, He Lelu, Guan Yongnian, Liu Zijun*, Yang Zhiyong, Wang Xunsi, Dai Shixun, Shen Xiang. Mid infrared fluorescence characteristics and application of Co2+:ZnS doped chalcogenide glass-ceramics [J]. Ceramics International, 2022, 48(6): 8502-8508. (doi:10.1016/j.ceramint.2021.12.060)

[16] Gui Yiming, Guan Yongnian, Zhang Xusheng, Zhang Chunqiu, Xia Kelun, He Lelu, Shen Xiang, Liu Zijun*. Development and characteristics of infrared gradient refractive index chalcogenide glasses by hot pressing [J]. Optics Express, 2022, 30(12): 21491-21500. (doi:10.1364/oe.462274)

[17] Zhang Xusheng, Liu Zijun*, Gui Yiming, Gan Haotian, Guan Yongnian, He Lelu, Wang Xunsi, Shen Xiang, Dai Shixun. Characteristics and preparation of a polarization beam splitter based on a chalcogenide dual-core photonic crystal fiber [J]. Optics Express, 2021, 29(24): 39601-39610. (doi:10.1364/oe.443797)

[18] Gan Haotian, Xia Kelun, Gui Yiming, Zhang Xusheng, Zeng Na, Cao Zhenfei, Wang Xunsi, Dai Shixun, Liu Zijun*. High content Er3+ doped ZBLAN glass: The spectral characteristics and high slope efficiency MIR laser investigation [J]. Journal of Alloys and Compounds, 2021, 865: 158170-158178. (doi:10.1016/j.jallcom.2020.158170)