Journal
CHINESE OPTICS LETTERS
Volume 20, Issue 3, Pages -Publisher
OSA-OPTICAL SOC
DOI: 10.3788/COL202220.031101
Keywords
solid immersion square Maxwell 's fish-eye lens; super-resolution imaging; conformal mapping
Categories
Funding
- National Key Research and Development Program of China [2020YFA0710100]
- National Natural Science Foundation of China [92050102, 11874311]
- Fundamental Research Funds for the Central Universities [20720200074]
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In this study, a solid immersion square Maxwell's fish-eye lens is proposed to achieve broadband achromatic super-resolution imaging based on transformation optics at microwave frequencies. A super-resolution information transmission channel is also designed for long-distance multi-source super-resolution information transmission.
Broadband super-resolution imaging is important in the optical field. To achieve super-resolution imaging, various lenses from a superlens to a solid immersion lens have been designed and fabricated in recent years. However, the imaging is unsatisfactory due to low work efficiency and narrow band. In this work, we propose a solid immersion square Maxwell's fish-eye lens, which realizes broadband (7-16 GHz) achromatic super-resolution imaging with full width at half-maximum around 0.2 lambda based on transformation optics at microwave frequencies. In addition, a super-resolution information transmission channel is also designed to realize long-distance multi-source super-resolution information transmission based on the super-resolution lens. With the development of 3D printing technology, the solid immersion Maxwell's fish-eye lens is expected to be fabricated in the high-frequency band.
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