Figure 3: Measurement with the magnifying hyperlens.
From: Spherical hyperlens for two-dimensional sub-diffractional imaging at visible frequencies
(a) Scanning electron microscope (SEM) image of object 1: two 100 nm diameter dots separated by a 100 nm wide bar. The gap sizes are 180 and 160 nm. All scale bars shown in the figure are 500 nm. (b) Image taken of the object being magnified by the hyperlens. The sub-diffraction-limited objects were clearly resolved by the spherical hyperlens. Along the red dash line, a cross section is taken to calibrate the performance of the hyperlens. (c) Cross-sectional analysis showing separation by 363 and 346 nm, respectively, corresponding to ×2.1 magnification. (d) SEM image of object 2: three dots positioned triangularly with gaps of 180, 170 and 160 nm. (e, f) Image and cross section of the object along the red line after being magnified.
