Fig. 9From: Polarization-Dependent Quasi-Far-Field Superfocusing Strategy of Nanoring-Based Plasmonic LensesIntensity distribution patterns of |E z |2 and |E r |2 in r-z plane in the case of radially polarized light. a |E z |2 pattern in the r-z plane. The inset shows a circular-shape focus in the focal plane. b The transverse |E r |2 pattern in the r-z plane. The inset shows a donut-shape focus in the focal planeBack to article page