Scalable high-efficiency metasurface-refractive retro-reflector

doi: 10.1186/s43074-025-00172-9

• Quan Yuan¹ , 
• Qin Ge¹ , 
• Xiujuan Zou⁶ , 
• Yi Zhang¹ , 
• Yuhang Yang¹ , 
• Boyan Fu¹ , 
• Ruoyu Lin¹ , 
• Boping He¹ , 
• Shuming Wang^{1,2,3 ,  ,}  , 
• Din Ping Tsai^{4,5 ,  ,}  , 
• Shining Zhu^1,2,3 , 
• Zhenlin Wang^{1,3 ,  ,} 

• 1 National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China;

• 2 Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing 210093, China;

• 3 Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China;

• 4 Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China;

• 5 The State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon, Hong Kong SAR, China;

• 6 College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China