Subwavelength superfocusing with a dipole-wave-reciprocal binary zone plate

• Main Authors: Wang, Jun, Qin, Fei, Zhang, Dao Hua, Li, Dongdong, Wang, Yueke, Shen, Xiaonan, Yu, Ting, Teng, Jing Hua
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
• Online Access: https://hdl.handle.net/10356/96433; http://hdl.handle.net/10220/9889
• Institution: Nanyang Technological University

We propose an idea of using a convergent dipole wave at the aperture, radiated from a dipole at distance of z0, to produce a perfect focusing at z0. We verified this idea through simulation and experimental observation. It is demonstrated that the zone plate designed based on the idea can provide...