Metasurface- assisted multimodal quantum imaging

• 成果类型: Article
• 署名作者: Zhou, Yifan; Zhu, Xiaoshu; Li, Tianyue; Zhou, Zhou; Bi, Qianhui; Liu, Jun; Chen, Jian; Fu, Boyan; He, Juanzi; Feng, Xiaojing; Feng, Xinyang; Liu, Xingyu; Wang, Qianjin; Wang, Shuming; Wang, Zhenlin; Qiu, Cheng - Wei; Zhu, Shining
• 署名单位: Nanjing University; Nanjing University; Collaborative Innovation Center of Advanced Microstructures (CICAM); National University of Singapore; University of Shanghai for Science & Technology; Nanjing University
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-10123
• DOI: 10.1073/pnas.2500760122
• 发表日期: 2025-05-06
• 关键词: metalens

摘要

Traditional quantum imaging is featured by remarkable sensitivity and signal- to- noise ratio, but limited by bulkiness and static function (either phase contrast imaging or edge detection). Our report synergizes a polarization- entangled source with a metasurface consisting of various sophisticatedly engineered spatial frequency segments. By tuning polarization, we demonstrate multiple on- state quantum imaging modes, enabling flexible switching between phase contrast, edge, and arbitrary superimposed imaging mode. Furthermore, the off- state, which characterizes the background noise, enables self- calibration of the system by subtracting this noise in on- state modes, resulting in self- enhanced edge detection. Our approach performs phase contrast imaging with a phase difference of pi/4 present in the target object, and edge imaging capable of detecting tiny (radius about 2 mu m) defects, maintaining high image contrast (phase contrast of 0.726, and enhanced edge contrast of 0.902). Our results provide insights into constructive duet between quantum imaging and metaoptics.