Zhen Wei, Ronghua Lu, Hong Yu, Zhijie Tan, Ruiguo Zhu, Shensheng Han. Research on Intensity-Correlated Interferometry with Ultra-Weak Light Based on Coincidence Counting[J]. Acta Optica Sinica, 2020, 40(1): 0111013
- Acta Optica Sinica
- Vol. 40, Issue 1, 0111013 (2020)
Fig. 1. Principle of pulsar intensity-correlated interferometry
Fig. 2. Experimental optical path of intensity-correlated interferometry with ultra-weak light. (a) Optical path; (b) photograph
Fig. 3. Coincidence curves. (a) Coincidence counts at different detecting intervals; (b) Gaussian fitting curve of coincidence counts
Fig. 4. Second-order interference fringes of simulated sources with different angular diameters
Fig. 5. Relationship between relative statistical error and average channel counts
Fig. 6. Measurement results of fixed maximum coincidence counts. (a) Intensity correlation values with fixed maximum coincidence counts; (b) measurement time and photon flux with fixed maximum coincidence counts
Fig. 7. Measurement results of fixed measurement time. (a) Intensity correlation values with fixed measurement time; (b) relative statistical errors with fixed measurement time
Fig. 8. Influence of system temporal resolution. (a) Coincidence peak of raw data; (b) coincidence peaks after convolution processing; (c) results under different system temporal resolutions
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