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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 21028–21037

Optical field characteristics of nanofocusing by conical metal-coated dielectric probe

Kazuo Tanaka, Kiyofumi Katayama, and Masahiro Tanaka  »View Author Affiliations

Optics Express, Vol. 19, Issue 21, pp. 21028-21037 (2011)

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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.

© 2011 OSA

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Optics at Surfaces

Original Manuscript: June 27, 2011
Revised Manuscript: September 19, 2011
Manuscript Accepted: September 20, 2011
Published: October 7, 2011

Kazuo Tanaka, Kiyofumi Katayama, and Masahiro Tanaka, "Optical field characteristics of nanofocusing by conical metal-coated dielectric probe," Opt. Express 19, 21028-21037 (2011)

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