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Semicrystalline woodpile photonic crystals without complicated alignment via soft lithography

TitleSemicrystalline woodpile photonic crystals without complicated alignment via soft lithography
Publication TypeJournal Article
Year of Publication2010
AuthorsLee JH, Kuang P, Leung W, Kim YS, Park JM, Kang H, Constant K, Ho KM
Journal TitleApplied Physics Letters
Volume96
Pages193303
Date Published05/10
ISBN Number0003-6951
Accession NumberISI:000277756400074
Keywordsband-gap, CONVERSION, crystal symmetry, FABRICATION, INFRARED WAVELENGTHS, nanofabrication, nanoparticles, photonic crystals, POLYMERS, SOFT LITHOGRAPHY, TEMPLATES, titanium compounds, transfer moulding
Abstract

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 degrees alignment, the fabricated photonic 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 degrees at the main photonic band gap. (C) 2010 American Institute of Physics. [doi:10.1063/1.3425756]
URL<Go to ISI>://000277756400074