Influence of Atmospheric Turbulence Channel on a Super-Resolution Ghost Imaging Transmission System Based on Plasmonic Structure Illumination Microscopy

• Main Authors: Kaimin Wang, Zhaorui Wang, Chunyan Bai, Leihong Zhang, Bo Dai, Yuxing Zhang, Hualong Ye, Zhisheng Zhang, Xiaoxuan Han, Tong Xue, Meiyong Xu, Jiafeng Hu, Xiangjun Xin, Dawei Zhang
• Format: Article
• Language: English
• Published: Frontiers Media S.A. 2020-10-01
• Series: Frontiers in Physics
• Subjects: surface plasmon polaritons; structure illumination microscopy; ghost imaging; super-resolution; atmospheric turbulence; gamma-gamma model
• Online Access: https://www.frontiersin.org/article/10.3389/fphy.2020.546528/full

Ghost imaging is a novel imaging technique that has various advantages over traditional imaging. However, most of the existing works on this technique do not achieve a better resolution than the diffraction limit. In this work, we presented a ghost imaging system with plasmonic structure illumination microscopy that achieved super-resolution imaging. The resolution reaches three to four times of the diffraction limit with surface plasmon polaritons and structure illumination microscopy theory. Since it can produce super-resolution images, this method has important implications in medical fields, such as in microimaging and endoscopy. We used the gamma–gamma intensity-fluctuation model to simulate the ghost imaging system in an atmospheric turbulence channel. By setting proper values of the transmission distance and refractive-index structure parameter, we obtain the peak signal-to-noise ratio (PSNR) performance and symbol-error rate (SER) performance. Finally, the PSNR and SER are used to evaluate the imaging quality, which provides a theoretical model to research the ghost-imaging algorithm further.