This is the second article in a series of two dealing with the concept of"resonant metalens" we introduced recently [Phys. Rev. Lett. 104, 203901(2010)]. It is a new type of lens capable of coding in time and radiatingefficiently in the far field region sub-diffraction information of an object. Aproof of concept of such a lens is performed in the microwave range, using amedium made out of a square lattice of parallel conducting wires with finitelength. We investigate a sub-wavelength focusing scheme with time reversal anddemonstrate experimentally spots with focal widths of {\lambda}/25. Through across-correlation based imaging procedure we show an image reconstruction witha resolution of {\lambda}/80. Eventually we discuss the limitations of such alens which reside essentially in losses.
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