Adjustable three color optical filters using ferroelectric -dielectric generalized heterostructures photonic crystals

The current research is aimed to investigate the alterations of its optical features of novel adjustable three color narrowband optical filters, which comprise of blue, green and red light. A narrowband adjustable transmission optical filters according to dielectric- ferroelectric heterostructures photonic structures are designed using the transfer-matrix method (TMM). The dependence of the ferroelectric refractive index on the external applied voltage is considered in our investigations. The transmission spectra of the designed hetrostructures with the most valuable parameters, like repeat cycle counts number of PCs, external electric field, and incident angle for both TE and TM polarizations are numerically investigated. The results show that the transmission peaks of three color filter shift toward the shorter wavelength by increasing the incident angle for both polarization. Also, adjustability of the optical features of the proposed hetrostructures crystals external applied electric field is investigated .Therefore, these calculated results reveal an innovative idea for designing the tunable trichromatic filter and display applicationsthis.