Modeling of Orientation-Dependent Photoelastic Constants in Cubic Crystal System

Abstract

Euler's rotation theorem and tensor rotation technique are applied to develop a generalized mathematical model for determining photoelastic constants in arbitrary orientation of cubic crystal system. Two times rotations are utilized in the model relating to crystallographic coordinates with Cartesian coordinates. The symmetry of photoelastic constants is found to have strong dependence with rotation angle. Using the model, one can determine photoelastic constants in any orientation by selecting appropriate rotation angle. The outcome of this study helps to characterize spatial variation of residual strain in crystalline as well as polycrystalline materials having cubic structure using the experimental technique known as scanning infrared polariscope.

Optical and Electrical Performance Analysis of InGaAs/InP Laser for Various Crystal Orientations

“…Furthermore, little research was done on the critical features of ZB III-V QW structure that are reliant on crystal orientations. Anisotropy, piezoelectricity, and crystalline structure have all been examined as influences on phonon acoustics oscillations in GaAs/AlAs superlattices including GaAs QW slabs [23,24]. They described a generic numerical approach for determining photoelastic factors in (hkl)-orientated cubic crystal structures [25].…”