Broadband Achromatic Metalenses

Yu Han Chen, Pin Chieh Wu, Shuming Wang, Ren Jie Lin, Jia Wern Chen, Yi Chieh Lai, Cheng Hung Chu, Bo Han Chen, Zhenlin Wang, Tao Li, Shining Zhu, Din Ping Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In contrast to the traditional bulk optical elements, metasurfaces provide a new perspective on flexibly shaping the electromagnetic field by manipulating its phase, amplitude as well as polarization at will via a compact and easy-of-fabrication system. However, due to the high phase dispersion of their building blocks, metasurfaces significantly suffer from large chromatic aberration. Such chromatic aberration significantly degrades the performance of full-color optical applications, such as in communication, detection, imaging, displaying etc. Here we propose a design principle to realize achromatic metasurface devices which successfully eliminate the chromatic aberration over a continuous wavelength regions from 400 to 660 nm and 1200 to 1680 nm in a transmission and reflection scheme, respectively, for circularly-polarized incidences. For this proof-of-concept, we demonstrate broadband achromatic metalenses 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
Title of host publication2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781943580422
Publication statusPublished - 2018 Aug 6
Event2018 Conference on Lasers and Electro-Optics, CLEO 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

Name2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

Conference

Conference2018 Conference on Lasers and Electro-Optics, CLEO 2018
CountryUnited States
CitySan Jose
Period18-05-1318-05-18

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

Chen, Y. H., Wu, P. C., Wang, S., Lin, R. J., Chen, J. W., Lai, Y. C., Chu, C. H., Chen, B. H., Wang, Z., Li, T., Zhu, S., & Tsai, D. P. (2018). Broadband Achromatic Metalenses. In 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings [8426411] (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc..