Compact planar lenses based on a pinhole and an array of single mode metallic slitsQ. Lévesque, P. Bouchon, F. Pardo, J.-L. Pelouard and R. HaïdarJ. Eur. Opt. Soc.-Rapid Publ., 8 (2013) 13071DOI: https://doi.org/10.2971/jeos.2013.13071