Comparative study of density of states of 1D photonic crystal for different polarization conditions of incident wave

In this paper, a comparative analysis is made for density of states profile of one-dimensional infinite photonic crystal under the incidence of electromagnetic wave with different polarizations (p- type and s-type). Semiconductor heterostructure is considered as the material for the periodic arrangement, and structural parameters are suitably varied to observe the effect on DOS function, characterized by blueshift and redshift. Adachi´s model is considered to incorporate the dependencies of refractive indices on operative wavelength and material composition. Results are plotted with normalized wavelength. Positions of peaks speak about the possible emission/detection wavelength for photonic crystal based laser. Analysis is useful in designing optical memory and micro-laser devices.