A super-resolution reconstruction algorithm based on improved superoscillation

Yi Tong; Danni Chen; Heng Li; Bo Cao

doi:10.1117/12.2576293

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7 October 2020 A super-resolution reconstruction algorithm based on improved superoscillation

Yi Tong, Danni Chen, Heng Li, Bo Cao

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Proceedings Volume 11571, Optics Frontier Online 2020: Optics Imaging and Display; 1157103 (2020) https://doi.org/10.1117/12.2576293
Event: Optics Frontiers Online 2020: Optics Imaging and Display (OFO-1), 2020, Shanghai, China

Abstract

Over the past decades, numerous efforts have been made to improve imaging resolution beyond the Abbe-Rayleigh limit. Optical super-oscillations, the phenomenon that the certain combination of band-limited functions could oscillate arbitrarily faster than its highest Fourier components, offer a promising route to optical super-resolution imaging. Here we developed a super-oscillation function filter based on super directivity array antenna, which is used in digital image processing. We demonstrate the ability of this method in recovering coherent diffraction limit images. It was proved that two holes separated by a distance about 0.7 times of the diffraction limit can be distinguished, and it is consistent with the capacity of the filter designed.

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Yi Tong, Danni Chen, Heng Li, and Bo Cao "A super-resolution reconstruction algorithm based on improved superoscillation", Proc. SPIE 11571, Optics Frontier Online 2020: Optics Imaging and Display, 1157103 (7 October 2020); https://doi.org/10.1117/12.2576293

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