Achromatic metalens array for full-colour light-field imaging

Ren Jie Lin, Vin Cent Su, Shuming Wang, Mu Ku Chen, Tsung Lin Chung, Yu Han Chen, Hsin Yu Kuo, Jia Wern Chen, Ji Chen, Yi Teng Huang, Jung Hsi Wang, Cheng Hung Chu, Pin-Chieh Wu, Tao Li, Zhenlin Wang, Shining Zhu, Din Ping Tsai

Research output: Contribution to journalLetter

5 Citations (Scopus)

Abstract

A light-field camera captures both the intensity and the direction of incoming light 1–5 . This enables a user to refocus pictures and afterwards reconstruct information on the depth of field. Research on light-field imaging can be divided into two components: acquisition and rendering. Microlens arrays have been used for acquisition, but obtaining broadband achromatic images with no spherical aberration remains challenging. Here, we describe a metalens array made of gallium nitride (GaN) nanoantennas 6 that can be used to capture light-field information and demonstrate a full-colour light-field camera devoid of chromatic aberration. The metalens array contains an array of 60 × 60 metalenses with diameters of 21.65 μm. The camera has a diffraction-limited resolution of 1.95 μm under white light illumination. The depth of every object in the scene can be reconstructed slice by slice from a series of rendered images with different depths of focus. Full-colour, achromatic light-field cameras could find applications in a variety of fields such as robotic vision, self-driving vehicles and virtual and augmented reality.

Original languageEnglish
Pages (from-to)227-231
Number of pages5
JournalNature Nanotechnology
Volume14
Issue number3
DOIs
Publication statusPublished - 2019 Mar 1

Fingerprint

Color
color
Imaging techniques
Cameras
cameras
Aberrations
aberration
acquisition
Gallium nitride
virtual reality
Augmented reality
gallium nitrides
robotics
Virtual reality
vehicles
Robotics
Diffraction
Lighting
illumination
broadband

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Lin, R. J., Su, V. C., Wang, S., Chen, M. K., Chung, T. L., Chen, Y. H., ... Tsai, D. P. (2019). Achromatic metalens array for full-colour light-field imaging. Nature Nanotechnology, 14(3), 227-231. https://doi.org/10.1038/s41565-018-0347-0
Lin, Ren Jie ; Su, Vin Cent ; Wang, Shuming ; Chen, Mu Ku ; Chung, Tsung Lin ; Chen, Yu Han ; Kuo, Hsin Yu ; Chen, Jia Wern ; Chen, Ji ; Huang, Yi Teng ; Wang, Jung Hsi ; Chu, Cheng Hung ; Wu, Pin-Chieh ; Li, Tao ; Wang, Zhenlin ; Zhu, Shining ; Tsai, Din Ping. / Achromatic metalens array for full-colour light-field imaging. In: Nature Nanotechnology. 2019 ; Vol. 14, No. 3. pp. 227-231.
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Lin, RJ, Su, VC, Wang, S, Chen, MK, Chung, TL, Chen, YH, Kuo, HY, Chen, JW, Chen, J, Huang, YT, Wang, JH, Chu, CH, Wu, P-C, Li, T, Wang, Z, Zhu, S & Tsai, DP 2019, 'Achromatic metalens array for full-colour light-field imaging', Nature Nanotechnology, vol. 14, no. 3, pp. 227-231. https://doi.org/10.1038/s41565-018-0347-0

Achromatic metalens array for full-colour light-field imaging. / Lin, Ren Jie; Su, Vin Cent; Wang, Shuming; Chen, Mu Ku; Chung, Tsung Lin; Chen, Yu Han; Kuo, Hsin Yu; Chen, Jia Wern; Chen, Ji; Huang, Yi Teng; Wang, Jung Hsi; Chu, Cheng Hung; Wu, Pin-Chieh; Li, Tao; Wang, Zhenlin; Zhu, Shining; Tsai, Din Ping.

In: Nature Nanotechnology, Vol. 14, No. 3, 01.03.2019, p. 227-231.

Research output: Contribution to journalLetter

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AU - Lin, Ren Jie

AU - Su, Vin Cent

AU - Wang, Shuming

AU - Chen, Mu Ku

AU - Chung, Tsung Lin

AU - Chen, Yu Han

AU - Kuo, Hsin Yu

AU - Chen, Jia Wern

AU - Chen, Ji

AU - Huang, Yi Teng

AU - Wang, Jung Hsi

AU - Chu, Cheng Hung

AU - Wu, Pin-Chieh

AU - Li, Tao

AU - Wang, Zhenlin

AU - Zhu, Shining

AU - Tsai, Din Ping

PY - 2019/3/1

Y1 - 2019/3/1

N2 - A light-field camera captures both the intensity and the direction of incoming light 1–5 . This enables a user to refocus pictures and afterwards reconstruct information on the depth of field. Research on light-field imaging can be divided into two components: acquisition and rendering. Microlens arrays have been used for acquisition, but obtaining broadband achromatic images with no spherical aberration remains challenging. Here, we describe a metalens array made of gallium nitride (GaN) nanoantennas 6 that can be used to capture light-field information and demonstrate a full-colour light-field camera devoid of chromatic aberration. The metalens array contains an array of 60 × 60 metalenses with diameters of 21.65 μm. The camera has a diffraction-limited resolution of 1.95 μm under white light illumination. The depth of every object in the scene can be reconstructed slice by slice from a series of rendered images with different depths of focus. Full-colour, achromatic light-field cameras could find applications in a variety of fields such as robotic vision, self-driving vehicles and virtual and augmented reality.

AB - A light-field camera captures both the intensity and the direction of incoming light 1–5 . This enables a user to refocus pictures and afterwards reconstruct information on the depth of field. Research on light-field imaging can be divided into two components: acquisition and rendering. Microlens arrays have been used for acquisition, but obtaining broadband achromatic images with no spherical aberration remains challenging. Here, we describe a metalens array made of gallium nitride (GaN) nanoantennas 6 that can be used to capture light-field information and demonstrate a full-colour light-field camera devoid of chromatic aberration. The metalens array contains an array of 60 × 60 metalenses with diameters of 21.65 μm. The camera has a diffraction-limited resolution of 1.95 μm under white light illumination. The depth of every object in the scene can be reconstructed slice by slice from a series of rendered images with different depths of focus. Full-colour, achromatic light-field cameras could find applications in a variety of fields such as robotic vision, self-driving vehicles and virtual and augmented reality.

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JO - Nature Nanotechnology

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Lin RJ, Su VC, Wang S, Chen MK, Chung TL, Chen YH et al. Achromatic metalens array for full-colour light-field imaging. Nature Nanotechnology. 2019 Mar 1;14(3):227-231. https://doi.org/10.1038/s41565-018-0347-0