title: Optical field characteristics of nanofocusing by conical metal-coated dielectric probe.
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.
authors: Department of Electronics and Computer Engineering, Gifu University, Yanagido 1-1,Gifu City 501-1193, Japan. tanakazu@.gifu-u.ac.jp
authors: Kazuo
authors: K
authors: Tanaka
authors: Kiyofumi
authors: K
authors: Katayama
authors: Masahiro
authors: M
authors: Tanaka
mesh_terms: D000465:Algorithms; D000535:Aluminum / Q000737:chemistry; D020099:Coated Materials, Biocompatible; D003300:Copper / Q000737:chemistry; D060733:Electromagnetic Radiation; D004867:Equipment Design; D006046:Gold / Q000737:chemistry; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008670:Metals / Q000737:chemistry*; D008962:Models, Theoretical; D036103:Nanotechnology / Q000379:methods*; D009532:Nickel / Q000737:chemistry; D055095:Optics and Photonics; D012542:Scattering, Radiation
chemical_list: D020099:Coated Materials, Biocompatible; D008670:Metals; D006046:Gold; D003300:Copper; D009532:Nickel; D000535:Aluminum