中国激光, 2017, 44 (1): 0101005, 网络出版: 2017-01-10
多孔掩模对统计独立散斑图像形成的影响分析 下载: 783次
Affects of Mutli-Apertures Mask on Formation of Statistically Independent Speckle Image
图 & 表
图 1. 多孔掩模影响激光散斑的原理示意图
Fig. 1. Schematic of the effect of mask with multiple apertures on the laser speckle
图 3. 孔径为2 mm的两个透光孔之间不同中心间距 d 下测得的散斑图像。(a) d =3 mm; (b) d =4 mm;(c) d =5 mm; (d) d =6 mm;(e) d =7 mm; (f) d =8 mm
Fig. 3. Speckle images for different d between the two apertures with the diameter of 2 mm. (a) d =3 mm; (b) d =4 mm; (c) d =5 mm; (d) d =6 mm; (e) d =7 mm; (f) d =8 mm
图 4. 两个孔径为2 mm的透光孔之间不同中心间距 d 对应的散斑图像的对比度
Fig. 4. Speckle contrast corresponding to different d between the two apertures with the diameter of 2 mm
图 5. 两个孔径为4 mm的透光孔之间不同中心间距 d 对应的散斑图像的对比度
Fig. 5. Speckle contrast corresponding to different d between the two apertures with the diameter of 4 mm
表 1不同透光孔孔径下散斑图像内散斑颗粒平均大小
Table1. Average sizes of the speckle granules under the apertures with different diameters
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徐美芳, 丁俊文, 胡鹏, 王浩全, 王冠军. 多孔掩模对统计独立散斑图像形成的影响分析[J]. 中国激光, 2017, 44(1): 0101005. Xu Meifang, Ding Junwen, Hu peng, Wang Haoquan, Wang Guanjun. Affects of Mutli-Apertures Mask on Formation of Statistically Independent Speckle Image[J]. Chinese Journal of Lasers, 2017, 44(1): 0101005.