2018/03/27 by Feras AlQatari, Muhammad Sajjad, AlQatari, Feras +9
Engineering · Physics and Astronomy · #Acoustic Wave Resonator Technologies #FOS: Physical sciences #GaN-based semiconductor devices and materials #Materials Science (cond-mat.mtrl-sci) #Metal and Thin Film Mechanics
paper · pdf · doi:10.48550/arxiv.1803.10011
openalex publication_date 2018/03/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The optical properties of BAlN and BGaN ternary alloys are investigated using first-principle calculation. Hybrid density functional theory is applied to determine the refractive indices of different alloys. A peculiar non-linear behavior of the static refractive index as a function of boron composition is found. The results of this calculation are interpolated to generate a three dimensional dataset, which could be used for designing a myriad of strained and strain-free optoelectronic and photonic devices. This is then used to find a lattice-matched heterostructure optimized for DBR applications (B0.108Ga0.892N/AlN). A DBR design with 25 pairs at a wavelength of 375 nm is found to have peak reflectivity of 99.8% and a bandwidth of 26 nm.