Numerical Analysis of Ridged-Circular Nanoaperture for Near-Field Optical Disk

<table>Near-field intensity: (a) circular nanoaperture and (b) ridged-circular nanoaperture (<svg height="15.35" id="M31" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 71.587502 15.35" width="71.587502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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International Scholarly Research Notices

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Figure 3

Figure 3: Numerical Analysis of Ridged-Circular Nanoaperture for Near-Field Optical Disk 