Abstract
Nanofocusing of surface plasmon polariton by a conical metal-coated dielectric probe was investigated numerically using the three dimensional volume integral equation. The basic characteristics of the nanofocused optical fields generated by this probe were investigated in detail. The intensity distribution near the probe tip was found to be very sensitive to the shape of the probe tip. Enhanced local fields interfere near the tip for certain probe tip shapes.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Algorithms
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Aluminum / chemistry
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Coated Materials, Biocompatible
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Copper / chemistry
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Electromagnetic Radiation
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Equipment Design
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Gold / chemistry
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Image Processing, Computer-Assisted / methods
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Metals / chemistry*
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Models, Theoretical
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Nanotechnology / methods*
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Nickel / chemistry
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Optics and Photonics
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Scattering, Radiation
Substances
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Coated Materials, Biocompatible
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Metals
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Gold
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Copper
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Nickel
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Aluminum