Broadband achromatic optical metasurface devices

Shuming Wang, Pin Chieh Wu, Vin Cent Su, Yi Chieh Lai, Cheng Hung Chu, Jia Wern Chen, Shen Hung Lu, J. Chen, Beibei Xu, Chieh Hsiung Kuan, Tao Li, Shining Zhu, Din Ping Tsai

Research output: Contribution to journalArticlepeer-review

694 Citations (Scopus)


Among various flat optical devices, metasurfaces have presented their great ability in efficient manipulation of light fields and have been proposed for variety of devices with specific functionalities. However, due to the high phase dispersion of their building blocks, metasurfaces significantly suffer from large chromatic aberration. Here we propose a design principle to realize achromatic metasurface devices which successfully eliminate the chromatic aberration over a continuous wavelength region from 1200 to 1680 nm for circularly-polarized incidences in a reflection scheme. For this proof-of-concept, we demonstrate broadband achromatic metalenses (with the efficiency on the order of 12%) which are capable of focusing light with arbitrary wavelength at the same focal plane. A broadband achromatic gradient metasurface is also implemented, which is able to deflect wide-band light by the same angle. Through this approach, various flat achromatic devices that were previously impossible can be realized, which will allow innovation in full-color detection and imaging.

Original languageEnglish
Article number187
JournalNature communications
Issue number1
Publication statusPublished - 2017 Dec 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)


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