Main > Chinese Optics Letters >  Volume 18 >  Issue 9 >  Page 092401 > Article
  • Abstract
  • Abstract
  • Figures (5)
  • Tables (0)
  • Equations (5)
  • References (24)
  • Get PDF
  • View Full Text
  • Paper Information
  • Received: Apr. 7, 2020

    Accepted: May. 9, 2020

    Posted: Jul. 13, 2020

    Published Online: Jul. 15, 2020

    The Author Email: Yanqing Wu (, Renzhong Tai (

    DOI: 10.3788/COL202018.092401

  • Get Citation
  • Copy Citation Text

    Lei Zhang, Lin Wang, Yanqing Wu, Renzhong Tai. Plasmonic Luneburg lens and plasmonic nano-coupler[J]. Chinese Optics Letters, 2020, 18(9): 092401

    Download Citation

  • !Citations Alert
  • Category
  • Plasmonics and Metamaterials
  • Share
Chinese Optics Letters, Vol. 18, Issue 9, 092401 (2020)

Plasmonic Luneburg lens and plasmonic nano-coupler

Lei Zhang1,2, Lin Wang1,2, Yanqing Wu1,3,*, and Renzhong Tai1,3,**

Author Affiliations

  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China


In a single nanoscale device, surface plasmon polaritons (SPPs) have potential to match the different length scales associated with photonics and electronics. In this Letter, we propose an accurate design of a plasmonic metasurface Luneburg lens (PMLL) accommodating SPPs. The simulations indicate that the full width at half-maximum is 0.42 μm, and the focus efficiency is 78%. The characters of a PMLL have robustness to manufacturing errors. The PMLL is applied in a 10 μm long compact coupler model, which couples the SPPs to the 40 nm wide output waveguide. The couple efficiency is higher than that of a conventional taper coupler in a broad bandwidth. The design is compatible with standard lithography technology.


Please Enter Your Email: