Intensity Distribution and Phase Vortices of Speckle Fields Generated by Multi-Aperture Random Scattering Screens
Intensity Distribution and Phase Vortices of Speckle Fields Generated by Multi-Aperture Random Scattering Screens
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多孔随机散射屏散斑场的强度分布和相位涡旋
DOI：
10.1088/0256-307x/27/3/034202
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发表时间：
2010-03
影响因子：
3.5
通讯作者：
Cheng Chuan-Fu
中科院分区：
文献类型：
--
作者：
Liu Man;Song Hong-Sheng;Chen Xiao-Yi;Liu Gui-Yuan;Teng Shu-Yun;Cheng Chuan-Fu
模拟了多孔径随机散射屏产生的散斑场的强度分布和相位涡旋，发现涡旋呈现层状结构，双小孔产生的局部相位图中出现错位现象，其相位分布呈现条纹状。对于三孔或四孔光阑，散斑颗粒中出现多个圆形亮点，相邻圆形亮点之间存在一个涡旋。相分布中出现正负相涡格，等值线所围成的区域形成不规则四边形或六边形。此外，可以通过改变针孔孔径的相对位置来调整涡旋或亮点的相对位置。
The intensity distribution and phase vortices of the speckle fields generated by multi-aperture random scattering screens are simulated, and it is found that the vortices exhibit layer-like structures and the dislocation phenomena occur in the local phase patterns produced by the two-pinhole aperture, whose phase distributions appear as striped structures. For three- or four-pinhole aperture, there are many circular bright spots appearing in the speckle grains, and there is one vortex between the neighboring circular bright spots. The positive and negative phase vortex lattices appear in the phase distributions, and the regions circled by the isothetic phase lines form irregular quadrilaterals or hexagons. Moreover, the relative positions of the vortices or bright spots can be adjusted by changing those of the pinhole apertures.
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影响因子：
3.5
作者：
Luo Meng-Bo;Zhang Wei;Sun Li-Zhen
通讯作者：
Sun Li-Zhen
影响因子：
3.8
作者：
K. O’Holleran;M. Padgett;Mark R. Dennis
通讯作者：
K. O’Holleran;M. Padgett;Mark R. Dennis
DOI：
10.1103/physreve.75.066613
发表时间：
2006-12
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
G. Ruben;D. Paganin
通讯作者：
G. Ruben;D. Paganin
影响因子：
3.8
作者：
Gibson, G;Courtial, J;Franke-Arnold, S
通讯作者：
Franke-Arnold, S
影响因子：
56.9
作者：
Paterson, L;MacDonald, MP;Dholakia, K
通讯作者：
Dholakia, K