Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber

We develop a model of interaction between photons and electrons in an active vortex field, which can generate a fluorescence spectrum with the characteristics of orbital angular momentum (OAM). In an active optical fiber, our findings generalize the notion of photon–electron interaction and point to...

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Main Authors: Wu Yan, Wen Jianxiang, Tang Fengzai, Pang Fufei, Guo Hairun, Huang Sujuan, Wang Tingyun
Format: Article
Language:English
Published: De Gruyter 2022-12-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2022-0466
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author Wu Yan
Wen Jianxiang
Tang Fengzai
Pang Fufei
Guo Hairun
Huang Sujuan
Wang Tingyun
author_facet Wu Yan
Wen Jianxiang
Tang Fengzai
Pang Fufei
Guo Hairun
Huang Sujuan
Wang Tingyun
author_sort Wu Yan
collection DOAJ
description We develop a model of interaction between photons and electrons in an active vortex field, which can generate a fluorescence spectrum with the characteristics of orbital angular momentum (OAM). In an active optical fiber, our findings generalize the notion of photon–electron interaction and point to a new kind of OAM-mode broad-spectrum light source, which could be interpreted in two processes: one microscopically is the excitation of OAM-carrying photons based on the photon–electron interaction; the other macroscopically is the emission and transmission of a donut-shaped fluorescence in a vortex field with a spiral phase wavefront in a ring-core active fiber. Here we present a straightforward experimental method that the emission of broad-spectrum fluorescence with an OAM feature is actualized and validated in a ring-core erbium-doped fiber. The spectrum has a broad spectral width up to 50 nm. Furthermore, four wavelengths are extracted from the fluorescence spectrum and superimposed with their corresponding Gaussian beams, from which the spiral-shaped interferograms of OAM modes in a broad spectrum are identified with high purity. The application of the OAM-based fluorescence light source may range from classical to quantum information technologies, and enable high-capacity communication, high-sensitivity sensing, high-resolution fluorescence imaging, etc.
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spelling doaj.art-41c7da96476c4394a0a9c4735334fd952023-02-05T08:27:17ZengDe GruyterNanophotonics2192-86142022-12-01121435310.1515/nanoph-2022-0466Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiberWu Yan0Wen Jianxiang1Tang Fengzai2Pang Fufei3Guo Hairun4Huang Sujuan5Wang Tingyun6Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaWMG, University of Warwick, Coventry, CV4 7AL, UKKey Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai200444, ChinaWe develop a model of interaction between photons and electrons in an active vortex field, which can generate a fluorescence spectrum with the characteristics of orbital angular momentum (OAM). In an active optical fiber, our findings generalize the notion of photon–electron interaction and point to a new kind of OAM-mode broad-spectrum light source, which could be interpreted in two processes: one microscopically is the excitation of OAM-carrying photons based on the photon–electron interaction; the other macroscopically is the emission and transmission of a donut-shaped fluorescence in a vortex field with a spiral phase wavefront in a ring-core active fiber. Here we present a straightforward experimental method that the emission of broad-spectrum fluorescence with an OAM feature is actualized and validated in a ring-core erbium-doped fiber. The spectrum has a broad spectral width up to 50 nm. Furthermore, four wavelengths are extracted from the fluorescence spectrum and superimposed with their corresponding Gaussian beams, from which the spiral-shaped interferograms of OAM modes in a broad spectrum are identified with high purity. The application of the OAM-based fluorescence light source may range from classical to quantum information technologies, and enable high-capacity communication, high-sensitivity sensing, high-resolution fluorescence imaging, etc.https://doi.org/10.1515/nanoph-2022-0466orbital angular momentum fluorescencering-core active fibervortex light source
spellingShingle Wu Yan
Wen Jianxiang
Tang Fengzai
Pang Fufei
Guo Hairun
Huang Sujuan
Wang Tingyun
Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
Nanophotonics
orbital angular momentum fluorescence
ring-core active fiber
vortex light source
title Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
title_full Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
title_fullStr Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
title_full_unstemmed Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
title_short Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
title_sort orbital angular momentum fluorescence emission based on photon electron interaction in a vortex field of an active optical fiber
topic orbital angular momentum fluorescence
ring-core active fiber
vortex light source
url https://doi.org/10.1515/nanoph-2022-0466
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AT wenjianxiang orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber
AT tangfengzai orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber
AT pangfufei orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber
AT guohairun orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber
AT huangsujuan orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber
AT wangtingyun orbitalangularmomentumfluorescenceemissionbasedonphotonelectroninteractioninavortexfieldofanactiveopticalfiber