期刊
APPLIED PHYSICS LETTERS
卷 94, 期 23, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3151920
关键词
angular momentum; Fourier transform optics; light diffraction; optical vortices
资金
- National Natural Science Foundation of China (NNSFC) [60678027]
We present a method for measuring the orbital angular momentum (OAM) of optical vortices through extracting the phase values sampled by a multipinhole plate. We demonstrate that the phase of an optical vortex passing through a multipinhole plate can be directly extracted from the Fourier transform of a single diffraction intensity pattern according to a simple algorithm and thus the l state or the OAM of the photons can be measured quantitatively.
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