On October 14, 2022, the students of Qian Xuesen's Mechanics Class, Grade 22, Tsinghua University, visited our laboratory.

Prof. Xue Feng introduced ourlaboratory to the students enthusiastically, and explained the latest international leading research achievements from the simple to the deep, such as real-time ultra-spectral imaging chips, quantum integrated chip/quantum network, optical orbital angular momentum radiation chip, free electron radiation chip/ultra narrow linewidth terahertz source. He patiently answered the students' questions in vivid language, described the differences between photons and electrons, the differences between micro nano structured optoelectronic devices and traditional devices, and the numerous application prospects of micro nano structured optoelectronic chips in the future intelligent society. Finally, he hoped that students can learn the basic knowledge of mathematics and physics well, and lay a solid foundation for future development.