Developing the theory and technology for on-chip optical multidimensional regulation and intelligent sensing applications, and carrying out innovative research on the spatio-temporal light field regulation theory and experimental characterization technology via multi-layer micro-nano structures and metasurfaces. Specifically, constructing the vector light field regulation theory of complex microstructure system and excavating the physical mechanism of light-microstructure interaction; exploring the potential applications of light manipulation technology base on micro-nano structure in photoelectric detection, nanoscale light source, biological detection, etc.

《Optical electromagnetic theory》

《Micro-nano optics and photonics》

National Natural Science Foundation, Youth project（2023）

National Natural Science Foundation, General project（2019）

Publications

1. Kai Ou#, Feilong Yu#, Guanhai Li*, Wenjuan Wang, Andrey E. Miroshnichenko*, Lujun Huang, Peng Wang, Zhifeng Li, Tianxin Li, Xiaoshuang Chen*, and Wei Lu, Mid-infrared polarization-controlled broadband achromatic metadevice, Science Advances, 6(37), eabc0711(2020).

2. Kai Ou#, Feilong Yu#, Guanhai Li*, Wenjuan Wang, Jin Chen, Andrey E. Miroshnichenko*, Lujun Huang, Zhifeng Li, Tianxin Li, Xiaoshuang Chen*, and Wei Lu, Broadband Achromatic Metalens in Mid-Wavelength Infrared, Laser& Photonics Reviews, 15, 202100020(2021).

3. Hui Yang #, Kai Ou#, Hengyi Wan, Yueqiang Hu*,Zeyong Wei, Honghui Jia, Xinbin Cheng, Na Liu, and Huigao Duan*,  “Metasurface-empowered optical cryptography”, Materials Today, (2023).

4. Hui Yang, Peng He, Kai Ou, Yueqiang Hu*, Yuting Jiang, Honghui Jia, Zhenwei Xie*, Xiaocong Yuan, and Huigao Duan*, Angular Momentum Holography via a Minimalist Metasurface for Optical Nested Encryption, Light: Science & Applications (2023).

5. Kai Ou*, Hengyi Wan, Guangfeng Wang, Jingyuan Zhu, Siyu Dong, Tao He, Hui Yang , Zeyong Wei*, Zhanshan Wang and Xinbin Cheng*，Advances in Meta-optics and Meta-devices: Fundamentals and Applications，Nanomaterials, （特邀, 2023).

6. Kai Ou, Guanhai Li*, Tianxin Li, Hui Yang, Feilong Yu, Jin Chen, Zengyue Zhao, Guangtao Cao, Xiaoshuang Chen*, and Wei Lu, High efficiency focusing vortex generation and detection with polarization-insensitive dielectric metasurfaces, Nanoscale, 10(40), 19154-19161(2018).

7. Cheng Cheng, Kai Ou*, Hui Yang*, Hengyi Wan, Zeyong Wei, Zhanshan Wang and Xinbin Cheng, Electric-Driven Polarization Meta-Optics for Tunable Edge-Enhanced Images, Micromachines, 13, 541(2022).

8. Hui Yang, Yuting Jiang, Yueqiang Hu, Kai Ou, and Huigao Duan, Non-interleaved Metasurface for Full-Polarization Three-Dimensional Vectorial Holography, Laser& Photonics Reviews, Accepted(2022).

Patent

Multi-channel focusing vortex beam generator based on all-dielectric metasurface (CN209148978U)

2021, President's Excellence Award of Chinese Academy of Sciences

2021, Shanghai outstanding graduate

2020, Chinese National Scholarship for doctoral students

2020, First-class scholarship of Chinese Academy of Sciences