focusing efficiency in the metalens

HalimBishoyHalimBishoy Member Posts: 21

Can I ask how I determine the focusing efficiency in the metalens using Lumerical FDTD?


  • shkimshkim Posts: 71Ansys Employee
    edited May 7

    Would you let me know the definition of "focusing efficiency" according to the reference you are probably citing?

    Without knowing its definition, it would be difficult to tell how to calculate it from the simulation result.

  • HalimBishoyHalimBishoy Posts: 43Member

    the name of the paper is: Polarization Insensitive, Broadband, Near Diffraction Limited Metalens in Ultraviolet Region

    Focusing efficiency is the ratio of the total light intensity at the focal spot to the transmitted light.

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