Chinese Optics Letters, Vol. 18, Issue 9, 091101 (2020)
Naked-eye ghost imaging via photoelectric feedback
Gao Wang1, Huaibin Zheng1,2,*, Zhiguo Tang1, Yuchen He1,2, Yu Zhou3, Hui Chen1, Jianbin Liu1,2, Yuan Yuan1, Fuli Li3, and Zhuo Xu1,2
- 1Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
- 2Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
- 3Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Ministry of Education, Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China
A new architecture, naked-eye ghost imaging via photoelectric feedback, is developed that avoids computer algorithm processing. Instead, the proposed scheme uses a photoelectric feedback loop to first realize the correlation (multiplication) process of the traditional ghost imaging system. Then, the vision persistence effect of the naked eye is exploited to implement the integral process and to generate negative images. Two kinds of feedback circuits, the digital circuit and the analog circuit, are presented that can achieve a feedback operation. Based on this design, high-contrast real-time imaging of moving objects is obtained via a special pattern-scanning architecture on a low-speed light-modulation mask.
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