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

研究成果: Conference contribution


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 fullcolor 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.

主出版物子標題QELS_Fundamental Science, CLEO_QELS 2018
發行者OSA - The Optical Society
出版狀態Published - 2018
事件CLEO: QELS_Fundamental Science, CLEO_QELS 2018 - San Jose, United States
持續時間: 2018 五月 132018 五月 18


名字Optics InfoBase Conference Papers
Part F93-CLEO_QELS 2018


ConferenceCLEO: QELS_Fundamental Science, CLEO_QELS 2018
國家United States
城市San Jose

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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