Controlling the Bandgaps of One-Dimensional TiO<sub>2</sub>/SiO<sub>2</sub>, TiO<sub>2</sub>/SnO<sub>2</sub>, and SiO<sub>2</sub>/SnO<sub>2</sub> Photonic Crystals Using the Transfer Matrix Method

One-dimensional photonic crystals (1D PhCs) have a unique ability to control the propagation of light waves, however certain classes 1D oxides remain relatively unexplored for use as PhCs. Specifically, there has not been comparative study three different PhC structures compare influence layer thickness, number, and refractive index on PhCs transmission. Herein, we transfer matrix method (TMM) theoretically examine transmission composed layers TiO2/SiO2, TiO2/SnO2, SiO2/SnO2, combinations with various top bottom thicknesses cover substantial region electromagnetic spectrum (UV NIR). With increasing numbers TiO2/SiO2 edges became sharper wider bandgap width increased. Moreover, demonstrated that significantly thick had high transmittance wide bandgap, allowing wide-band optical filter applications. These architectures could enable variety applications, depending properties needed.