4 November 2010 Beam shaping by the use of plasmonics
Author Affiliations +
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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Byoungho Lee, Byoungho Lee, Seyoon Kim, Seyoon Kim, Dawoon Choi, Dawoon Choi, } "Beam shaping by the use of plasmonics", Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784805 (4 November 2010); doi: 10.1117/12.869095; https://doi.org/10.1117/12.869095

Back to Top