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- Title
Magnifying Lens with Ultrabroadband Super‐Resolution Real Imaging.
- Authors
Zhou, Yangyang; Li, Jue; Chen, Huanyang
- Abstract
In recent years, novel magnifying lenses have generated much attention, not only because of their intriguing physics but also for their ability to achieve real‐time super‐resolution imaging. However, these super‐resolution magnifying lenses have been limited to virtual imaging and narrow band hindering the practical applications of magnifying lens. Here, a method is proposed to design a real‐imaging magnifying lens with ultrabroadband super‐resolution real‐time imaging capability based on conformal transformation optics. As a proof of concept, a two dimensional (2D) magnifying lens is designed, and its ability of ultrabroadband real imaging (working bandwidth of 104% of central frequency) with sub‐diffraction resolution in the microwave region is experimentally verified. It is found that the designed 2D magnifying lens has good robustness of fabrication errors, which provides more flexibility for practical applications. Furthermore, a three dimensional (3D) magnifying lens is designed by rotating the 2D magnifying lens along its symmetric axis. The 3D magnifying lens also maintains excellent imaging performance consistent with the one of 2D magnifying lens. Both 2D and 3D magnifying lenses can be integrated into conventional microscopes, expanding their capabilities for color super‐resolution magnified real imaging and opening a new realm in ultrabroadband super‐resolution real imaging.
- Subjects
HIGH resolution imaging; TRANSFORMATION optics; CONFORMAL mapping; MICROSCOPES; PROOF of concept; MICROWAVE photonics; LENSES
- Publication
Laser & Photonics Reviews, 2022, Vol 16, Issue 12, p1
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.202200273