Jin Chen, Shao Xin Huang, Ka Fai Chan, Geng-Bo Wu, Chi Hou Chan
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引用次数: 0
Abstract
Real-time dynamic super-resolution focusing technology is crucial for various imaging applications. However, the diffraction limit significantly impedes the achievement of real-time dynamic super-resolution imaging. Prior studies within this domain, such as super-resolution fluorescence imaging and structured illumination microscopy, heavily rely on fluorescent labels and intricate algorithms. This article proposes a novel approach to achieving real-time dynamic super-resolution imaging at microwave frequency by integrating the Mikaelian lens derived from conformal transformation optics with the space-time-coding metasurface antenna. Real-time dynamic super-resolution focusing with a resolution ranging from 0.3λ to 0.4λ is demonstrated at the periphery of the Mikaelian lens with a numerical aperture (NA) of 0.54. The proposed hybrid lens exhibits the capacity to discern features separated by about one-third of a wavelength with high precision. The work offers a universal solution for achieving dynamic real-time super-resolution imaging electrically, which can be extended to terahertz waves, visible light, and other wave fields, such as acoustic and flexural waves.
期刊介绍:
Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications.
As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics.
The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.