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2014-01-30
Flat Far Field Lenses and Reflectors
By
Progress In Electromagnetics Research M, Vol. 34, 163-170, 2014
Abstract
We present a flat lens design that provides focusing with no aberration. By profiling the refractive index of the lens to generate a spherical wavefront at the exit side of the lens, the transmitted fields converge at a specified focal point. The focusing is achieved using primarily the dispersion phenomenon. We show through numerical examples that focusing without aberration can be achieved at a specific frequency and that focusing is possible over a narrow range of frequencies providing that the dispersion is minimal. Additionally, we show that the same principle used to design the lens can be used to design flat reflectors with a focal point focusing.
Citation
Miguel Ruphuy, Zhao Ren, and Omar M. Ramahi, "Flat Far Field Lenses and Reflectors," Progress In Electromagnetics Research M, Vol. 34, 163-170, 2014.
doi:10.2528/PIERM13122607
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