Design of an optical buffer by using 1d quaternary photonic crystal

For the first time, an optical buffer based on 1D quaternary photonic crystal (QPC) is proposed in this paper. This QPC consists of 12 periods of four different material layers. This QPC buffer can delay light of desired wavelengths. The wavelength transmitted by this buffer can be changed by changing the layer parameters of the QPC structure. Different values of delay times can be obtained through this optical buffer by changing the structural parameters and/or number of periods in this structure. These 1D QPC-based optical buffers generate high values of delay time as compared to 1D binary and ternary photonic crystal-based optical buffers.