Experimental demonstration of generating arbitrary total angular momentum states

Heng Zhou; Chunqing Gao; Shiyao Fu; Yanwang Zhai; Jianqiang Zhang

doi:10.3788/COL202018.110503

Experimental demonstration of generating arbitrary total angular momentum states

Heng Zhou, Chunqing Gao, Shiyao Fu^*, Yanwang Zhai, Jianqiang Zhang

^*Corresponding author for this work

School of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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 momenta (SAM and OAM) under paraxial approximation, has found many applications in optics and attracted 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 an excellent agreement, including both the separable state and the non-separable state. The proposed scheme takes a step forward for generating complex structured fields and broadens its application to various fields like laser processing and large capacity data transmission.

Original language	English
Article number	110503
Journal	Chinese Optics Letters
Volume	18
Issue number	11
DOIs	https://doi.org/10.3788/COL202018.110503
Publication status	Published - 10 Nov 2020

Keywords

Diffraction gratings
Polarization

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10.3788/COL202018.110503

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title = "Experimental demonstration of generating arbitrary total angular momentum states",

abstract = "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 momenta (SAM and OAM) under paraxial approximation, has found many applications in optics and attracted 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 an excellent agreement, including both the separable state and the non-separable state. The proposed scheme takes a step forward for generating complex structured fields and broadens its application to various fields like laser processing and large capacity data transmission.",

keywords = "Diffraction gratings, Polarization",

author = "Heng Zhou and Chunqing Gao and Shiyao Fu and Yanwang Zhai and Jianqiang Zhang",

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AU - Zhou, Heng

AU - Gao, Chunqing

AU - Fu, Shiyao

AU - Zhai, Yanwang

AU - Zhang, Jianqiang

PY - 2020/11/10

Y1 - 2020/11/10

N2 - 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 momenta (SAM and OAM) under paraxial approximation, has found many applications in optics and attracted 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 an excellent agreement, including both the separable state and the non-separable state. The proposed scheme takes a step forward for generating complex structured fields and broadens its application to various fields like laser processing and large capacity data transmission.

AB - 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 momenta (SAM and OAM) under paraxial approximation, has found many applications in optics and attracted 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 an excellent agreement, including both the separable state and the non-separable state. The proposed scheme takes a step forward for generating complex structured fields and broadens its application to various fields like laser processing and large capacity data transmission.

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KW - Polarization

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Experimental demonstration of generating arbitrary total angular momentum states

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Keywords

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