Abstract
The article reports the results of experimental studies of the optical properties of globular photonic crystals filled with various chemical liquids. It opens up the possibility of creating highly sensitive refractive sensors of chemical compounds based on the introduction of these substances into the pores of opal matrices. The optical properties of opal matrices with different sizes of globules have been analyzed. Different spectral positions of the stop bands are present in the reflectance spectrum of globular photonic crystals, depending on the size of the particles. The sharp increase in the density of photonic states in photonic crystals opens up the possibility of increasing the efficiency of Raman scattering and nonlinear-optical processes in materials of this kind.
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