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Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber
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Wu, Yan, Wen, Jianxiang, Tang, Fengzai, Pang, Fufei, Guo, Hairun, Huang, Sujuan and Wang, Tingyun (2022) Orbital-angular-momentum fluorescence emission based on photon–electron interaction in a vortex field of an active optical fiber. Nanophotonics, 12 (1). pp. 43-53. doi:10.1515/nanoph-2022-0466 ISSN 2192-8606.
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Official URL: http://doi.org/10.1515/nanoph-2022-0466
Abstract
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.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
Library of Congress Subject Headings (LCSH): | Fluorescence, Photons, Electrons, Optical fibers | ||||||||||||
Journal or Publication Title: | Nanophotonics | ||||||||||||
Publisher: | De Gruyter | ||||||||||||
ISSN: | 2192-8606 | ||||||||||||
Official Date: | 16 December 2022 | ||||||||||||
Dates: |
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Volume: | 12 | ||||||||||||
Number: | 1 | ||||||||||||
Page Range: | pp. 43-53 | ||||||||||||
DOI: | 10.1515/nanoph-2022-0466 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Date of first compliant deposit: | 6 February 2023 | ||||||||||||
Date of first compliant Open Access: | 6 February 2023 | ||||||||||||
RIOXX Funder/Project Grant: |
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