Three-dimensional photonic crystals (PCs) are periodic materials with a modulated refractive index on a length scale
close to the light wavelength. This optical property allows the preparation of specific optical components like highly
reflective mirrors. Moreover, these structured materials are known to have a high laser-induced damage threshold
(LIDT) in the sub-nanosecond range compared to multi-layered dielectric mirrors. This property is obtained because only
one high LIDT material (silica) is used. The second material used in the layer stack is replaced by air. In this work, we
present the development of 3D PCs with narrow-sized colloidal silica particles, prepared by sol-gel process and
deposited with Langmuir-Blodgett technique. Different syntheses routes have been investigated and compared regarding
the optical properties of the PCs. Finally a numerical model based on an ideal opal network including defect influence is
used to explain these experimental results.
F. Benoit, E. Dieudonné, B. Bertussi, K. Vallé, P. Belleville, N. Mallejac, S. Enoch, and C. Sanchez, "Development of 3D photonic crystals using sol-gel process for high power laser applications," Proc. SPIE 9556, Nanoengineering: Fabrication, Properties, Optics, and Devices XII, 95560A (Presented at SPIE Nanoscience + Engineering: August 11, 2015; Published: 20 August 2015); https://doi.org/10.1117/12.2187017.
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