A Multi‐Foci Metalens with Polarization‐Rotated Focal Points

Xiaofei Zang, Hongzhen Ding, Yuttana Intaravanne, Lin Chen, Yan Peng, Jingya Xie, Qinghong Ke, Alexey V. Balakin, Alexander. P. Shkurinov, Xianzhong Chen, Yiming Zhu, Songlin Zhuang

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)
10 Downloads (Pure)

Abstract

Benefiting from the unprecedented capability of metasurfaces in the manipulation of light propagation, metalenses can provide novel functions that are very challenging or impossible to achieve with conventional lenses. Here, an approach to realizing multi‐foci metalenses is proposed and experimentally demonstrated with polarization‐rotated focal points based on geometric metasurfaces. Multi‐foci metalenses with various polarization rotation directions are developed using silicon pillars with spatially variant orientations. The focusing characteristic and longitudinal polarization‐dependent imaging capability are demonstrated upon the illumination of a linearly polarized light beam. The uniqueness of this multi‐foci metalens with polarization‐rotated focal points may open a new avenue for imaging, sensing, and information processing.
Original languageEnglish
Article number1900182
JournalLaser and Photonics Reviews
Volume13
Issue number12
Early online date28 Oct 2019
DOIs
Publication statusPublished - Dec 2019

Keywords

  • imaging
  • metalenses
  • metasurfaces
  • polarization control

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'A Multi‐Foci Metalens with Polarization‐Rotated Focal Points'. Together they form a unique fingerprint.

Cite this