Fabrication and optical characteristics of opal photonic crystal films and heterostructures
The relevance of fabrication and investigation of opals and opal-based structures is due to their ability to control the emission and propagation of light. Using the method of vertically moving meniscus we obtain both single opal films and two-film heterostructures. By examining reflectance spectra, we analyze the influence of the ratio of synthesis components on silica particle diameter. Features of the heterostructure reflectance spectrum are also discussed by considering the contribution of light scattering by the interface.