全息术
拉盖尔多项式
光学
衍射
栅栏
高斯光束
梁(结构)
全息光栅
衍射光栅
高斯分布
材料科学
物理
量子力学
作者
Yidong Liu,Chunqing Gao,Meiguo Gao
标识
DOI:10.1088/1674-1056/17/5/037
摘要
Laguerre–Gaussian beams, as a special model with spiral phase structure, have been intensively investigated. Holographic grating method is a convenient method of generating Laguerre–Gaussian beams and measuring their orbital angular momenta. But due to some inevitable adverse factors such as lateral displacement, angular deflection and elliptical incident profile of incident beam, the practical effectiveness should be reevaluated. This paper is devoted to the study on the influences of the abovementioned three adverse factors on the holographic grating method. The characteristics of the mode decomposition of diffractive order and the relative powers of the orbital angular momentum eigen-states are also given.
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