Measuring the Topological Charge of Orbital Angular Momentum Beams by Utilizing Weak Measurement Principle

According to the principle of weak measurement, when coupling the orbital angular momentum (OAM) state with a well-defined pre-selected and post-selected system of a weak measurement process, there will be an indirect coupling between position and topological charge (TC) of OAM state. Based on this...

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Detalles Bibliográficos
Autores principales: Zhu, Jing, Zhang, Pei, Li, Qichang, Wang, Feiran, Wang, Chenhui, Zhou, Yingnan, Wang, Jinwen, Gao, Hong, Kwek, Leong Chuan, Li, Fuli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6541590/
https://www.ncbi.nlm.nih.gov/pubmed/31142778
http://dx.doi.org/10.1038/s41598-019-44465-z
Descripción
Sumario:According to the principle of weak measurement, when coupling the orbital angular momentum (OAM) state with a well-defined pre-selected and post-selected system of a weak measurement process, there will be an indirect coupling between position and topological charge (TC) of OAM state. Based on this we propose an experiment scheme and experimentally measure the TC of OAM beams from −14 to 14 according to the weak measurement principle. After the experiment the intrinsic OAM of the beams changed very little. Weak measurement, Topological Charge, OAM beams.

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