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Simplified sedimentation process for 3D photonic thick layers/bulk crystals with a stop-band in the visible range by François Bresson; Chii-Chang Chen; Gou-Chung Chi; Yu-Wen Chen is a Materials Science article available to read on EtoBox.

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Self-organization of nano-size spherical particles in opal-like structures has been demonstrated to be a powerful mean to build three-dimensional (3D) photonic crystal. We here present a simplified sedimentation process leading to photonic crystal layer with a non-absolute bandgap in the visible range. The stacking organization is cross checked directly by classical optical microscopy (COM), atomic force microscopy (AFM) and scanning electron microscopy (SEM), giving a detailed scheme of the short range and long range organization, and indirectly by reflection/transmission spectroscopy for different incidence angles. The results show a very good resonance associated with a low cost deposition technique. The implementation of our method for further application like photonic waveguides is also discussed.

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Author

François Bresson; Chii-Chang Chen; Gou-Chung Chi; Yu-Wen Chen

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-4332)

Published

2003

Language

EN

Field

Materials Science (Physical Sciences)