期刊
OPTICS EXPRESS
卷 27, 期 9, 页码 12774-12779出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.27.012774
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资金
- National Natural Science Foundation of China (NSFC) [11674269, 91750115]
- Natural Science Foundation of Fujian Province of China [2018J01108]
- Principal Fund of Xiamen University [20720180082]
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University [2DMOST2018026]
- Scientific Research Foundation for Returned Scholars, Ministry of Education of China
We propose a new method to determine topological charge by using an improved Fizeau interferometer. This interferometer is very easy to realize, as well as interference fringes are very distinct. Phases of vortex, Hermite-Gaussian, and elliptical vortex beams are experimentally verified using this method. It provides a convenient way to determine the sign and magnitude of topological charge. This method may have some potential applications in space optical communication. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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