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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 23684–23689

Diffracted transmission effects of GaN and polymer two-dimensional square-lattice photonic crystals

Chang Xiong, Bei Zhang, XiangNing Kang, Tao Dai, and GuoYi Zhang  »View Author Affiliations

Optics Express, Vol. 17, Issue 26, pp. 23684-23689 (2009)

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The effects of the lattice pitch of GaN and polymer square-lattice photonic crystal (2PhC) on the diffracted transmission were studied by using rigorous coupled wave analysis (RCWA). Besides the first-order Bragg diffraction, higher-order diffractions from large pitches of PhC are also significant to the light extraction improvement. Three different diffraction mechanisms are illustrated through wave vector analysis. The enhancement factors of integrated transmission are obtained from a wide range of pitches with micro-scale for both GaN and polymer 2PhC. The experimental angular-resolved transmission on a transparent polymer sample of 2 μm pitch 2PhC is comparable to the simulation.

© 2009 OSA

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: October 29, 2009
Revised Manuscript: November 26, 2009
Manuscript Accepted: December 5, 2009
Published: December 10, 2009

Chang Xiong, Bei Zhang, XiangNing Kang, Tao Dai, and GuoYi Zhang, "Diffracted transmission effects of GaN and polymer two-dimensional square-lattice photonic crystals," Opt. Express 17, 23684-23689 (2009)

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