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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 5 — Mar. 10, 2014
  • pp: 5465–5473

Switchable beaming from a nanoslit with metallic gratings controlled by the phase difference between incident beams

Kyuho Kim, Seung-Yeol Lee, Hansik Yun, Jun-Bum Park, and Byoungho Lee  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5465-5473 (2014)

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We propose a switching method for optical beaming generated from a metal slit surrounded by surface gratings. The principle of the method is based on the interference of diffracted surface plasmon polaritons from the gratings which are controlled by the relative phases of two oblique incident beams that are illuminated on the metal slit. By adjusting the relative position of the interference pattern of the incident beams with respect to the metal slit, beaming from the proposed structure can be switched from the on- to the off-mode by virtue of the change in the symmetry of the generated surface plasmon polaritons. An experimental demonstration of the method is presented in which an electrically controlled interferometric configuration is used.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(350.2770) Other areas of optics : Gratings
(250.5403) Optoelectronics : Plasmonics
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:

Original Manuscript: January 23, 2014
Revised Manuscript: February 20, 2014
Manuscript Accepted: February 20, 2014
Published: February 28, 2014

Kyuho Kim, Seung-Yeol Lee, Hansik Yun, Jun-Bum Park, and Byoungho Lee, "Switchable beaming from a nanoslit with metallic gratings controlled by the phase difference between incident beams," Opt. Express 22, 5465-5473 (2014)

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