A novel numerical approach for the calculation of refractive index of Wurtzite InxGa1−xN

Abstract

Accurate values of refractive indices for In[Formula: see text]Ga[Formula: see text]N alloy as a function of indium mole fraction play a vital role in the modeling of In[Formula: see text]Ga[Formula: see text]N-based optoelectronics devices. This work extensively investigated, analyzed and derived a conclusive numerical approach to calculate the refractive index of In[Formula: see text]Ga[Formula: see text]N over a wide wavelength as a function of indium mole fraction based on Vegard’s law. The model is based on the fact that there is a strong correlation between the mole fraction (x) and the refractive index of ternary alloys A[Formula: see text]B[Formula: see text]C. An excellent agreement is observed between the computed values and experimental data which proves the effectiveness of our numerical approach.