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


研究成果: 書貢獻/報告類型會議論文篇章


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.

主出版物子標題Applications and Technology, CLEO_AT 2018
發行者OSA - The Optical Society
出版狀態已發佈 - 2018
事件CLEO: Applications and Technology, CLEO_AT 2018 - San Jose, 美国
持續時間: 2018 5月 132018 5月 18


名字Optics InfoBase Conference Papers
Part F92-CLEO_AT 2018


會議CLEO: Applications and Technology, CLEO_AT 2018
城市San Jose

ASJC Scopus subject areas

  • 電子、光磁材料
  • 材料力學


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