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arXiv · 2111.04905

Optical photonic crystals fabricated from colloidal systems

G. Subramania·K. Constant·R. Biswas·M. M. Sigalas·K. -M. Ho
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Abstract

Photonic crystals of close-packed arrays of air spheres in a dielectric background of titania have been fabricated with a novel ceramic technique. Unlike previous methods, ordering of the spheres and the formation of the titania network are performed simultaneously. The photonic crystals exhibit a reflectance peak and a uniform color at the position of the first stop band. The wavelength of the reflectance peak scales very well with the sphere size.

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G. Subramania, K. Constant, R. Biswas, M. M. Sigalas, K. -M. Ho. 2021-11-09. Optical photonic crystals fabricated from colloidal systems. https://doi.org/10.1063/1.124228

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