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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 9 — Apr. 28, 2008
  • pp: 6112–6118

Coupling of free space sub-terahertz waves into dielectric slabs using PC waveguides

Z. Ghattan, T. Hasek, M. Shahabadi, and M. Koch  »View Author Affiliations

Optics Express, Vol. 16, Issue 9, pp. 6112-6118 (2008)

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The paper presents theoretical and experimental results on photonic crystal structures which work under the self-collimation condition to couple free space waves into dielectric slabs in the sub-terahertz range. Using a standard machining process, two-dimensional photonic crystal structures consisting of a square array of air holes in the dielectric medium are fabricated. One of the structures has two adjacent parallel line-defects that improve the coupling efficiency. This leads to a combination of self-collimation and directional emission of electromagnetic waves. The experimental results are in good agreement with those of the Finite-Element-Method calculations. Experimentally we achieve a coupling efficiency of 63%.

© 2008 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Photonic Crystals

Original Manuscript: February 8, 2008
Revised Manuscript: April 10, 2008
Manuscript Accepted: April 10, 2008
Published: April 15, 2008

Z. Ghattan, T. Hasek, M. Shahabadi, and M. Koch, "Coupling of free space sub-terahertz waves into dielectric slabs using PC waveguides," Opt. Express 16, 6112-6118 (2008)

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