Spectral tomographic imaging with aplanatic metalens

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chen Chen
  • Wange Song
  • Jia-Wern Chen
  • Jung-Hsi Wang
  • Yu Han Chen
  • Beibei Xu
  • Hanmeng Li
  • Bin Fang
  • Ji Chen
  • Hsin Yu Kuo
  • Shuming Wang
  • Shining Zhu
  • Tao Li

Detail(s)

Original languageEnglish
Article number99
Number of pages8
Journal / PublicationLight: Science and Applications
Volume8
Online published6 Nov 2019
Publication statusPublished - 2019
Externally publishedYes

Link(s)

Abstract

Tomography is an informative imaging modality that is usually implemented by mechanical scanning, owing to the limited depth-of-field (DOF) in conventional systems. However, recent imaging systems are working towards more compact and stable architectures; therefore, developing nonmotion tomography is highly desirable. Here, we propose a metalens-based spectral imaging system with an aplanatic GaN metalens (NA = 0.78), in which large chromatic dispersion is used to access spectral focus tuning and optical zooming in the visible spectrum. After the function of wavelength-switched tomography was confirmed on cascaded samples, this aplanatic metalens is utilized to image microscopic frog egg cells and shows excellent tomographic images with distinct DOF features of the cell membrane and nucleus. Our approach makes good use of the large diffractive dispersion of the metalens and develops a new imaging technique that advances recent informative optical devices.

Research Area(s)

  • BAND ACHROMATIC METALENS, BROAD-BAND, HIGH-EFFICIENCY, PHASE DISCONTINUITIES, FLAT LENSES, WAVE PLATE, POLARIZATION, REFLECTION, RESOLUTION, DESIGN

Citation Format(s)

Spectral tomographic imaging with aplanatic metalens. / Chen, Chen; Song, Wange; Chen, Jia-Wern; Wang, Jung-Hsi; Chen, Yu Han; Xu, Beibei; Chen, Mu-Ku; Li, Hanmeng; Fang, Bin; Chen, Ji; Kuo, Hsin Yu; Wang, Shuming; Tsai, Din Ping; Zhu, Shining; Li, Tao.

In: Light: Science and Applications, Vol. 8, 99, 2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review