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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 23 — Nov. 12, 2007
  • pp: 14973–14978

Directivity enhancement and deflection of the beam emitted from a photonic crystal waveguide via defect coupling

Kaan Guven and Ekmel Ozbay  »View Author Affiliations

Optics Express, Vol. 15, Issue 23, pp. 14973-14978 (2007)

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We experimentally and numerically investigate the spatial distribution of the emission from a photonic crystal waveguide, coupled with defects, that are located at the output edge. Two defects that are located symmetrically enhance the directivity of the beam compared to that of a plain waveguide, as was reported in recently conducted theoretical work. We further demonstrate that a single defect deflects of the beam. By choosing the defect resonance that is close to the edge of the pass band of the waveguide, where the group velocity of the beam within the waveguide is slow, a significant amount of deflection can be achieved.

© 2007 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(260.5740) Physical optics : Resonance

ToC Category:
Photonic Crystal Waveguides

Original Manuscript: July 9, 2007
Revised Manuscript: August 24, 2007
Manuscript Accepted: August 24, 2007
Published: October 29, 2007

Kaan Guven and Ekmel Ozbay, "Directivity enhancement and deflection of the beam emitted from a photonic crystal waveguide via defect coupling," Opt. Express 15, 14973-14978 (2007)

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