Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface
A quasi-Bessel beam is a type of nondiffracted beam commonly used in microwave and optical fields. Although numerous methods have been proposed for quasi-Bessel beam generation, they are valid only in linear systems, indicating that the generation of nonlinear quasi-Bessel beams remains a major chal...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2021-04-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR21043 |
| _version_ | 1797427960148393984 |
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| author | Zuqi FANG Qiang CHENG Tiejun CUI |
| author_facet | Zuqi FANG Qiang CHENG Tiejun CUI |
| author_sort | Zuqi FANG |
| collection | DOAJ |
| description | A quasi-Bessel beam is a type of nondiffracted beam commonly used in microwave and optical fields. Although numerous methods have been proposed for quasi-Bessel beam generation, they are valid only in linear systems, indicating that the generation of nonlinear quasi-Bessel beams remains a major challenge. Thus, we propose a new approach to produce quasi-Bessel beams at high-order harmonics based on the time-domain digital-coding metasurface, which is utilized to achieve accurate control of the phase profile at the nonlinear frequencies via proper coding strategies. The effect of phase discretization is also analyzed in detail. The simulation results confirm the validity of the proposed method, which provides a new approach for nonlinear beam manipulation. |
| first_indexed | 2024-03-09T08:51:10Z |
| format | Article |
| id | doaj.art-99afa5fc779143cbbdc154bb4760e83a |
| institution | Directory Open Access Journal |
| issn | 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:51:10Z |
| publishDate | 2021-04-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-99afa5fc779143cbbdc154bb4760e83a2023-12-02T14:11:57ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2021-04-0110226727310.12000/JR21043R21043Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding MetasurfaceZuqi FANG0Qiang CHENG1Tiejun CUI2State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 211189, ChinaState Key Laboratory of Millimeter Waves, Southeast University, Nanjing 211189, ChinaState Key Laboratory of Millimeter Waves, Southeast University, Nanjing 211189, ChinaA quasi-Bessel beam is a type of nondiffracted beam commonly used in microwave and optical fields. Although numerous methods have been proposed for quasi-Bessel beam generation, they are valid only in linear systems, indicating that the generation of nonlinear quasi-Bessel beams remains a major challenge. Thus, we propose a new approach to produce quasi-Bessel beams at high-order harmonics based on the time-domain digital-coding metasurface, which is utilized to achieve accurate control of the phase profile at the nonlinear frequencies via proper coding strategies. The effect of phase discretization is also analyzed in detail. The simulation results confirm the validity of the proposed method, which provides a new approach for nonlinear beam manipulation.https://radars.ac.cn/cn/article/doi/10.12000/JR21043time-domain digital coding metasurfacebessel beamnonlinear modulation |
| spellingShingle | Zuqi FANG Qiang CHENG Tiejun CUI Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface Leida xuebao time-domain digital coding metasurface bessel beam nonlinear modulation |
| title | Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface |
| title_full | Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface |
| title_fullStr | Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface |
| title_full_unstemmed | Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface |
| title_short | Nonlinear Quasi-Bessel Beam Generation Based on the Time-domain Digital-Coding Metasurface |
| title_sort | nonlinear quasi bessel beam generation based on the time domain digital coding metasurface |
| topic | time-domain digital coding metasurface bessel beam nonlinear modulation |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR21043 |
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