Media 4: Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings LinD. Z. ChangC. K. ChenY. C. YangD. L. LinM. W. YehJ. T. LiuJ. M. KuanC. H. YehC. S. LeeC. K 2006 Originally published in Optics Express on 17 April 2006 (oe-14-8-3503)