Micromachines 2012, 3(1), 55-61; doi:10.3390/mi3010055
Article

Surface Plasmon Excitation and Localization by Metal-Coated Axicon Prism

Atsushi Ono 1,2,* email, Hiroki Sano 3 email, Wataru Inami 1,2 email and Yoshimasa Kawata 2,3,* email
1 Division of Global Research Leaders, Shizuoka University, 3-5-1 Johoku, Naka, Hamamatsu 432-8561, Japan 2 CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan 3 Faculty of Mechanical Engineering, Shizuoka University, 3-5-1 Johoku, Naka, Hamamatsu 432-8561, Japan
* Authors to whom correspondence should be addressed.
Received: 29 November 2011; in revised form: 1 February 2012 / Accepted: 1 February 2012 / Published: 8 February 2012
(This article belongs to the Special Issue Nano-photonic Devices)
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Abstract: Collimated Gaussian beams are efficiently localized at the apex of a metal-coated axicon prism by surface plasmon excitations. We observed the light scattered at the apex and the light reflected by the prism. Intense scattered light was observed with the radial polarization incidence. Further, each incidence of the radial, azimuthal, and linear polarizations provided field distributions of bright and dark intensities in the reflected images according to the surface plasmon excitation. We have demonstrated that surface plasmon waves are excited at the sides of the prism in the Kretschmann configuration and that they converge to its apex.
Keywords: surface plasmon polaritons; Kretschmann configuration; radial polarization; near-field optics; metallic thin film

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MDPI and ACS Style

Ono, A.; Sano, H.; Inami, W.; Kawata, Y. Surface Plasmon Excitation and Localization by Metal-Coated Axicon Prism. Micromachines 2012, 3, 55-61.

AMA Style

Ono A, Sano H, Inami W, Kawata Y. Surface Plasmon Excitation and Localization by Metal-Coated Axicon Prism. Micromachines. 2012; 3(1):55-61.

Chicago/Turabian Style

Ono, Atsushi; Sano, Hiroki; Inami, Wataru; Kawata, Yoshimasa. 2012. "Surface Plasmon Excitation and Localization by Metal-Coated Axicon Prism." Micromachines 3, no. 1: 55-61.

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