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Experimental demonstration of generating arbitrary total angular momentum states [Early Posting]

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摘要

We experimentally demonstrated an approach to generate arbitrary total angular momentum (TAM) states by using two liquid crystal devices. Photons’ TAM, the sum of spin and orbital angular momentum (SAM/OAM) under paraxial ap-proximation, have found many applications in optics, and attached increasing attention in recent years. Our approach is based on the orthogonality of two eigen SAM components, that arbitrary TAM states will be produced through encoding different holograms in one system. The comparison with theoretical predications yields excellent agreement, including both separable state and non-separable state. The proposed scheme takes a step forward for generating complex structured fields, and also broaden its application to various fields like laser processing, large capacity data-transmission and so on.

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作者单位:

    北京 北京理工大学光电学院431教研室

引用该论文

Zhou Heng,Gao Chunqing,Fu Shiyao,Zhai Yanwang,Zhang Jianqiang. Experimental demonstration of generating arbitrary total angular momentum states[J].Chinese Optics Letters,2020,18(11):11.