Want to interact with floating holograms? It's already a reality. Han Dongcheng, an optics PhD from the University of Science and Technology of China, is a leading figure in interactive holographic imaging in China. He leads the team that created China's only mass-produced product in this field, which has multiple world-leading technical components. Join us on his journey, from a "small workshop" in a campus library to a cutting-edge tech enterprise, to chase his dream.