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Abstract
We report an experimental demonstration of positive–negative sub-wavelength interference without correlation. Typically, people can achieve sub-wavelength effects with correlation measurement no matter by using bi-photon or thermal light sources. In this paper, we adopt a thermal light source, and we count the realizations in which the intensities of the definite symmetric points are above or below a certain threshold. The distribution of numbers of these realizations which meet the restriction will show a sub-wavelength effect. With proper constrictions, positive and negative interference patterns are demonstrated.
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Details
1 Beijing Institute of Technology, School of Physics, Beijing, China (GRID:grid.43555.32) (ISNI:0000 0000 8841 6246)
2 Yantai University, Department of Physics, Yantai, China (GRID:grid.440761.0) (ISNI:0000 0000 9030 0162)
3 Tianjin University of Technology and Education, School of Science, Tianjin, China (GRID:grid.449573.8) (ISNI:0000 0004 0604 9956)