Abstract
This paper describes the fabrication of opal-based photonic crystal heterostructures. These heterostructures were created by using multilayer deposition of silica and polystyrene spheres. The fabricated structures involved both different lattice constants and different dielectric constants. Single and double heterostructures working in the visible region were fabricated by using techniques described here. The optical properties of these heterostructures were investigated experimentally and showed the superposition of the properties of each individual crystal region as well as optical signatures due to inter-layer defects.
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Khokhar, A.Z., Rahman, F. & Johnson, N.P. Photonic crystal heterostructures from self-assembled opals. Appl. Phys. A 102, 281–287 (2011). https://doi.org/10.1007/s00339-010-6145-7
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DOI: https://doi.org/10.1007/s00339-010-6145-7