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Title: 拉盖尔-高斯光束照射产生散斑场的特性研究 = Study on properties of speckle field formed by Laguerre-Gaussian beam illumination
Authors: 李新忠 Li Xinzhong
田晓敏 Tian Xiaomin
王辉 Wang Hui
汤洁 Tang Jie
王屹山 Wang Yishan
聂兆刚 Nie Zhaogang
李贺贺 Li Hehe
王静鸽 Wang Jingge
Keywords: 物理光学
Issue Date: 2015
Source: Li, X., Tian, X., Wang, H., Tang, J., Wang, Y., Nie, Z., . . . Wang, J. (2015). 拉盖尔-高斯光束照射产生散斑场的特性研究 = Study on properties of speckle field formed by Laguerre-Gaussian beam illumination. 光学学报 Acta Optica Sinica, 35(7), 726001-. doi:10.3788/AOS201535.0726001
Series/Report no.: 光学学报 Acta Optica Sinica
Abstract: 研究了拉盖尔-高斯光束照射毛玻璃产生的散斑场的特性。利用空间光调制器结合计算全息法产生了拉盖尔-高斯涡旋光束;较深入地研究了拉盖尔-高斯光束照射下散斑大小与光束径向指数、角向指数及涡旋光束面积间的关系。结果显示:对同一径向指数,散斑颗粒平均大小随角向指数的增大呈直线减小趋势;对同一角向指数,散斑大小随径向指数的增大而减小;散斑大小与涡旋光束照射面积的负指数成正比;随径向指数的增大,其逐渐接近高斯光束照射的结果。 The properties of speckle field is studied when Laguerre-Gaussian (LG) beams illuminate a ground glass plate. The LG vortex beams are generated by a spatial light modulator combing with computer-generated hologram. The relation of speckle size and azimuthal and radial indices and the bright region of the LG beams are analyzed experimentally. Experimental results show that the speckle size decreases linearly with the azimuthal index increasing for certain radial index. Similarly, the speckle size also decreases with the radial index increasing for certain azimuthal index. Moreover, the speckle size is proportional to the negative factor of illuminating area of the LG beam. Further, the negative factor is gradual close to the results of Gaussian beam illuminating with the increasing radial index.
ISSN: 0253-2239
DOI: 10.3788/AOS201535.0726001
Rights: © 2015 《光学学报》 编辑部.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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