Science
Near-Field Microscopy with Superlenses
Sub-Wavelength Resolution in the IR Using Perovskite Oxides
Feb. 06, 2012
![Fig. 2: Near-field images. (a) For SrRuO3 objects on a SrTiO3 substrate we image near-field signals using a CO2 laser (λ = 10.6). The objects appear bright, which certain maxima due to plasmonic excitation related to the geometry of the structure. (b) On the superlens we observe a contrast beyond the diffraction limit for λ = 14.6 μm. Here, the objects appear equally bright, due to details in the illumination [9]. (scalebars are 10 μm). Figure adapted from [9]. Reprinted with permission from Nature Communications, Copyright (2011) [9].](/sites/imaging-git.com/files/images/special/5350812_preview.jpg "Fig. 2: Near-field images. (a) For SrRuO3 objects on a SrTiO3 substrate we image near-field signals using a CO2 laser (λ = 10.6). The objects appear bright, which certain maxima due to plasmonic excitation related to the geometry of the structure. (b) On the superlens we observe a contrast beyond the diffraction limit for λ = 14.6 μm. Here, the objects appear equally bright, due to details in the illumination [9]. (scalebars are 10 μm). Figure adapted from [9]. Reprinted with permission from Nature Communications, Copyright (2011) [9].") |
Fig. 2: Near-field images. (a) For SrRuO3 objects on a SrTiO3 substrate we image near-field signals ... more
Keywords: Metamaterials Near-field Microscopy Perovskite Oxides Sub-wavelength Imaging superlens
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School of Physics and Astronomy
St. Andrews, Scotland
United Kingdom
Web: http://www.st-andrews.ac.uk
Imaging & Microscopy Issue 4 , 2012 as free epaper or pdf download
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