Integrated resonant units of metasurface for broadband efficiency and phase modulation

Ren Jie Lin, Hui Hsin Hsiao, Yu Han Chen, Bo Han Chen, Pin Chieh Wu, Yi Chieh Lai, Shuming Wang, Din Ping Tsai

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

Abstract

The beauty of metasurfaces lies on their capability for controlling the amplitude, phase, and polarization response with subwavelength resolution via spatially-varying nano-scatterers. With the incorporation of multiple elements or multiple resonances of nano-resonators into metasurfaces, these integrated-resonant units (IRUs) provide additional degree of freedom to manipulate the multispectral optical property of scattering light over a continuous and broad bandwidth, which is especially essential for eliminating the chromatic effect that requires smooth and linear phase dispersion. Here, we demonstrated three achromatic meta-lens based on IRUs designs to show constant focal length in the range of 400 to 650 nm. In addition, a broadband versatile polarization generator operating in 400 nm to 1300 nm was demonstrated by using multinanorod IRUs as building blocks. The working efficiency of multi-nanorod design is enhanced above 10 times in the near infrared range compared to the optimization case of single nanorod design, demonstrating the capability of IRUs in achieving high conversion efficiency over a broad wavelength range.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationApplications and Technology, CLEO_AT 2018
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
DOIs
Publication statusPublished - 2018 Jan 1
EventCLEO: Applications and Technology, CLEO_AT 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

NameOptics InfoBase Conference Papers
VolumePart F92-CLEO_AT 2018

Conference

ConferenceCLEO: Applications and Technology, CLEO_AT 2018
CountryUnited States
CitySan Jose
Period18-05-1318-05-18

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Cite this

Lin, R. J., Hsiao, H. H., Chen, Y. H., Chen, B. H., Wu, P. C., Lai, Y. C., Wang, S., & Tsai, D. P. (2018). Integrated resonant units of metasurface for broadband efficiency and phase modulation. In CLEO: Applications and Technology, CLEO_AT 2018 (Optics InfoBase Conference Papers; Vol. Part F92-CLEO_AT 2018). OSA - The Optical Society. https://doi.org/10.1364/CLEO_AT.2018.JTh2A.70