Acta Optica Sinica, Volume. 7, Issue 5, 394(1987)
Rotating aperture method of speckle photography for dynamic problems II: Rectangle, parallelogram- and right-triangle-located-apertures
In this paper, we propose three new basic apertures in rotating aperture method: rectangle-located-aperture and parallelogram-located-aperture and right-triangle-located-aperture. Theoretical analysis and experimental demonstration are presented. By using these new apertures, the utilization ratio of information of a specklegrain is increased, the intensity distribution of diffraction halo becomes more reasonable and the N/S ratio is enhanced, so the speckle fringes are clearer and the experimental errors are less.
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GU JIE, SHEN YONGZHAO, YANG CHENGCHEN, ZHOU BUXING. Rotating aperture method of speckle photography for dynamic problems II: Rectangle, parallelogram- and right-triangle-located-apertures[J]. Acta Optica Sinica, 1987, 7(5): 394