Correspondence: Computationally efficient solution of snell's law of refraction

An algorithm for an efficient parallel implementation of Snell's law of refraction, applicable to planar interfaces, is found by algebraic manipulation. The algorithm is tailored for general-purpose graphics processing unit (GP-GPU)-type processors. Numerical singularity in the solution is addressed. Performance is compared against other implementations. Application areas include real-time total focusing method implementation, phased-array probe computer-aided design (CAD), and data fusion.