Flat pass-bands of one-dimensional photonic crystals composed of multiple quantum wells with Gaussian-distributed refractive indices

摘要

Transmissions of one-dimensional (ID) photonic crystals (PCs) containing multiple quantum wells with Gaussian-distributed refractive indices axe calculated with the use of the transfer-matrix method. The transmission spectrum of this kind of structures exhibits flatted pass-bands. The resonant peaks in the transmission spectrum of the conventional 1D PCs have been significantly suppressed. It is expected that this kind of structures may favor the fabrication of optical filters in applications to micro-optical devices.