Omnidirectional narrow bandpass filters based on one-dimensional superconductor–dielectric photonic crystal heterostructors

By using transfer matrix method, narrow passbands of TE wave from one-dimensional superconductor–dielectric photonic crystal heterostructures are presented. Various superconductor within the two-fluid model are considered. Results show that by selecting proper width for superconductor and dielectric layers and proper materials selection, single narrow passband in visible region can be obtained. Behavior of these passbands versus the temperature of superconductors, external magnetic field and incident angle are considered. We have shown that it is possible to obtain omnidirectional passbands with examining temperature, the dilation factor of the half part of a heterostructure and the other parameters of the heterostrutures. These tunable narrow passband may be useful in designing of narrow band filters or multichannel filters.