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New Route to Three-Dimensional Photonic Bandgap Materials: Silicon Double Inversion of Polymer Templates

New Route to Three-Dimensional Photonic Bandgap Materials: Silicon Double Inversion of Polymer Templates
Author: N. Tétreault, G. von Freymann, M. Deubel, M. Hermatschweiler, F. Pérez-Willard, S. John, M. Wegener, and G. A. Ozin links:
Source: Adv. Mater. 18, 457 (2006)
Date: 11.10.2005

Abstract:

High-refractive-index, 3D photonic crystals (see Figure) are produced by silicon double inversion of a polymer woodpile template fabricated by multiphoton direct laser writing. The method incorporates silica chemical vapor deposition fine-tuning of the filling fraction of an intermediate silica inverted woodpile, and thus the ability to tailor the width of the complete photonic band gap of the silicon woodpile.