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Proceedings Paper

Beam shaping by the use of plasmonics
Author(s): Byoungho Lee; Seyoon Kim; Dawoon Choi
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Paper Abstract

We will discuss methods to generate spatially collimated beams from surface plasmon polaritons. The representative method discussed in this paper is coupling surface plasmon polaritons, which are excited on a metal surface from a subwavelength metal slit, into collimated radiating fields with the use of surface gratings attached on the metal surface. In addition, the beam manipulation method by using multiple metallic waveguides, in which each waveguide has different width and length, will be discussed. With the aid of these methods, we will present three kinds of beams; on- and off-axis directional beams and a focused beam.

Paper Details

Date Published: 4 November 2010
PDF: 13 pages
Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784805 (4 November 2010); doi: 10.1117/12.869095
Show Author Affiliations
Byoungho Lee, Seoul National Univ. (Korea, Republic of)
Seyoon Kim, Seoul National Univ. (Korea, Republic of)
Dawoon Choi, Seoul National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7848:
Holography, Diffractive Optics, and Applications IV
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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