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Generation of polarization-multiplexed terahertz orbital angular momentum combs via all-silicon metasurfaces

Light: Advanced Manufacturing, ISSN: 2831-4093, Vol: 5, Issue: 3, Page: 400-409
2024
  • 1
    Citations
  • 0
    Usage
  • 2
    Captures
  • 8
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
  • Captures
    2
  • Mentions
    8
    • News Mentions
      8
      • 8

Most Recent News

Peking University Researchers Update Current Study Findings on Manufacturing (Generation of polarization-multiplexed terahertz orbital angular momentum combs via all-silicon metasurfaces)

2025 JAN 02 (NewsRx) -- By a News Reporter-Staff News Editor at Tech Daily News -- Investigators publish new report on manufacturing. According to news

Article Description

Electromagnetic waves carrying orbital angular momentum (OAM), namely OAM beams, are important in various fields including optics, communications, and quantum information. However, most current schemes can only generate single or several simple OAM modes. Multi-mode OAM beams are rarely seen. This paper proposes a scheme to design metasurfaces that can generate multiple polarization-multiplexed OAM modes with equal intervals and intensities (i.e., OAM combs) working in the terahertz (THz) range. As a proof of concept, we first design a metasurface to generate a pair of polarization-multiplexed OAM combs with arbitrary mode numbers. Furthermore, another metasurface is proposed to realize a pair of polarization-multiplexed OAM combs with arbitrary locations and intervals in the OAM spectrum. Experimental results agree well with full-wave simulations, verifying a great performance of OAM combs generation. Our method may provide a new solution to designing high-capacity THz devices used in multi-mode communication systems.

Bibliographic Details

Ming Zhe Chong; Zong Kun Zhang; Jin Zhao; Yue Yi Zhang; Chong Qi Zhang; Chao Hai Du; Pu Kun Liu; Ming Yao Xia; Yiwen Zhou; Xiaofei Zang

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Engineering; Materials Science; Physics and Astronomy

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