A broadband transformation-optics metasurface lens

作者:Wan Xiang; Jiang Wei Xiang; Ma Hui Feng; Cui Tie Jun*
来源:Applied Physics Letters, 2014, 104(15): 151601.
DOI:10.1063/1.4870809

摘要

We present a transformational metasurface Luneburg lens based on the quasi-conformal mapping method, which has weakly anisotropic constitutive parameters. We design the metasurface lens using inhomogeneous artificial structures to realize the required surface refractive indexes. The transformational metasurface Luneburg lens is fabricated and the measurement results demonstrate very good performance in controlling the radiated surface waves.