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Semicrystalline woodpile photonic crystals without complicated alignment via soft lithography
Applied Physics Letters
  • Jae-Hwang Lee, Iowa State University
  • Ping Kuang, Iowa State University
  • Wai Y. Leung, Iowa State University
  • Yong-Sung Kim, Iowa State University
  • Joong Mok Park, Iowa State University
  • Henry Kang, Iowa State University
  • Kristen P. Constant, Iowa State University
  • Kai-Ming Ho, Iowa State University
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Publication Date
We report the fabrication and characterization of woodpile photonic crystals with up to 12 layers through titania nanoparticle infiltration of a polymer template made by soft lithography. Because the complicated alignment in the conventional layer-by-layer fabrication associated with diamondlike symmetry is replaced by a simple 90° alignment, the fabricatedphotonic crystal has semicrystalline phase. However, the crystal performs similarly to a perfectly aligned crystal for the light propagation integrated from the surface normal to 30° at the main photonic band gap.

The following article appeared in Applied Physics Letters 96 (2010): 193303 and may be found at

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American Institute of Physics
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Citation Information
Jae-Hwang Lee, Ping Kuang, Wai Y. Leung, Yong-Sung Kim, et al.. "Semicrystalline woodpile photonic crystals without complicated alignment via soft lithography" Applied Physics Letters Vol. 96 Iss. 19 (2010) p. 193303
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