Photonics (Jan 2025)

Dual-Wavelength Polarization Multifunction Metalens Based on Spatial Multiplexing

  • Xiangshuo Shang,
  • Haiyang Huang,
  • Yi Zhou,
  • Jiaheng Gong,
  • Yang Liu,
  • Wei Li

DOI
https://doi.org/10.3390/photonics12010061
Journal volume & issue
Vol. 12, no. 1
p. 61

Abstract

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Technological advancements have enabled the active control of electromagnetic waves. Metalenses, known for their precision in wavefront shaping and functional versatility, represent a breakthrough in optical modulation. This study addresses the challenge of achieving dual-wavelength multifunctionality in metalens design. We developed and experimentally validated metalenses with polarization dual-function multiplexing at discrete mid-wave infrared wavelengths, demonstrating high phase fidelity and functional versatility. In addition, the proposed design method was extended to long-wave infrared wavelengths, showcasing its adaptability to different application scenarios. The application of spatial multiplexing significantly enhanced the performance of the metalenses, providing a promising solution for efficient and compact optoelectronic devices.

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