Research

Metasurface for Multidimensional Light-field Sensing

Conventional camera systems can only detect light intensity while losing important information about the target scene, including depth, polarization, and spectrum. To overcome this limitation, we use metasurface to replace conventional lens sets. By leveraging the unique capability of metasurface to tailor the vectorial light field at a sub-wavelength resolution, combined with appropriate computational reconstruction algorithms, we strive to build cameras that can sense multi-dimensional light field information, while maintaining a minimal system form factor.

Related Publications:

  1. “Monocular metasurface camera for passive single-shot 4D imaging” Nat. Commun. 14, 1035 (2023)
  2. “Computational spectropolarimetry with a tunable liquid crystal metasurface”. eLight 2, 23 (2022)
  3. “Synthetic aperture metalens”. Photonics Research 9, 2388 (2021)
  4. “Metalens‐Assisted System for Underwater Imaging”. Laser & Photonics Reviews 15, 2100097 (2021)
  5. “Metasurface for Structured Light Projection over 120° Field of View”. Nano Letters 20, 6719 (2020)
  6. “基于超构表面的多维光场感知”. 中国激光 48, 1918003 (2021) (特邀综述)

Subwavelength-thick Nonlinear Light Source

Related Publications:

  1. “Intracavity spatiotemporal metasurfaces” Advanced Photonics 5, 026002 (2023)
  2. “Second-Harmonic Generation in Strained Silicon Metasurfaces”. Adv. Photon. Res. 2200157 (2022)
  3. “Two-plasmon spontaneous emission from a nonlocal epsilon-near-zero material”. Comm. Phys. 4, 84 (2021)
  4. “Nonlinear meta-optics towards applications”. PhotoniX 2, 3 (2021) (invited review)
  5. “Broadband terahertz wave generation from an epsilon-near-zero material”. Light: Science & Applications 10, 11 (2021)
  6. “High-harmonic generation from an epsilon-near-zero material”. Nature Physics 15, 1022 (2019)
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