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Band Structure of Photonic Crystals Fabricated by Two-Photon Polymerization

2015; Multidisciplinary Digital Publishing Institute; Volume: 5; Issue: 1 Linguagem: Inglês

10.3390/cryst5010061

2073-4352

Mikhail V. Rybin, Ivan I. Shishkin, K. B. Samusev, Pavel A. Belov, Yuri S. Kivshar, Roman Kiyan, Boris N. Chichkov, M. F. Limonov,

Fern and Epiphyte Biology

We study theoretically the band-gap structures of several types of three-dimensional photonic crystals with the fcc lattice symmetry: synthetic opals, inverted yablonovite and woodpile. The samples of inverted yablonovite, inverted yablonovite with a glassy superstructure and woodpile are fabricated by two-photon polymerization through a direct laser writing technique, which allows the creation of complex three-dimensional photonic crystals with a resolution better than 100 nm. A material is polymerized along the trace of a moving laser focus, thus enabling the fabrication of any desirable three-dimensional structure by direct “recording” into the volume of a photosensitive material. The correspondence of the structures of the fabricated samples to the expected fcc lattices is confirmed by scanning electron microscopy. We discuss theoretically how the complete photonic band-gap is modified by structural and dielectric parameters. We demonstrate that the photonic properties of opal and yablonovite are opposite: the complete photonic band gap appears in the inverted opal, and direct yablonovite is absent in direct opal and inverted yablonovite.