Bie Shuhang, Tong Xiaoxi, Lv Ziyang, Ye Hanyu, Cao Tun
School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China.
Sci Adv. 2025 Aug 22;11(34):eadw4799. doi: 10.1126/sciadv.adw4799. Epub 2025 Aug 20.
Quantum imaging, operating at extremely low photon flux and accommodating nondegenerate imaging wavelengths, offers a unique approach for imaging light-sensitive structures. Conventional quantum imaging systems often require costly intensified charge-coupled devices together with complex delay line and triggering electronics, limiting broader applications. In this work, we propose an approach for quantum imaging that uses a simple rotating mask coded with cyclic Hadamard patterns, together with single-pixel detectors, eliminating the need for the abovementioned specialized devices. Single-pixel quantum imaging with a resolution of 41 pixels by 43 pixels is performed, and its noise-resistant performance is further studied with an improved gate time of 1 nanosecond using time-correlated single-photon counting. An imaging speed up to 2 frames per second can be achieved, corresponding to a spatial modulation rate of 3.8 kilohertz. Furthermore, quantum ghost imaging with the object and the mask modulation in separate beams is also demonstrated, showing the potential of our system for high-speed, low-cost, and noise-resistant quantum imaging applications.
量子成像在极低光子通量下运行，并能适应非简并成像波长，为对光敏感结构进行成像提供了一种独特方法。传统量子成像系统通常需要昂贵的增强型电荷耦合器件以及复杂的延迟线和触发电子设备，这限制了其更广泛的应用。在这项工作中，我们提出了一种量子成像方法，该方法使用编码有循环哈达玛图案的简单旋转掩模以及单像素探测器，无需上述专用设备。实现了分辨率为41像素×43像素的单像素量子成像，并使用时间相关单光子计数以1纳秒的改进门控时间进一步研究了其抗噪声性能。可以实现高达每秒2帧的成像速度，对应于3.8千赫兹的空间调制率。此外，还展示了在单独光束中对物体和掩模进行调制的量子鬼成像，显示了我们的系统在高速、低成本和抗噪声量子成像应用方面的潜力。
