Light People: Academician Songlin Zhuang.

Can you imagine that one single small capsule can achieve navigation and positioning, and do gastroscopy of the digestive system? Can you imagine that a machine can automatically complete the task of analyzing more than 4800 new coronavirus samples within 24 h? Don't be surprised, this has become a reality, thanks to Academician Songlin Zhuang and his team, who applied terahertz technology to various fields such as medicine, food safety, ecological environment monitoring, and social security. Dedicating his entire life to optics and terahertz, Academician Zhuang personifies courage, determination and persistence. He believes in science and hard work. He also takes it as his responsibility to pass on the optical spirit and cultivate optical young scientists.Today, Light Special Correspondents will take you to the University of Shanghai for Science and Technology to see the beginning and experience of Academician Songlin Zhuang's optical road. I believe it will open a window to a different optical world, and allow our readers to appreciate its unique beauty.