Parallelization Efficiency of the Elongation Method and its Application to NLO Design for Urea Crystal

Abstract

The elongation method designed for calculating the electronic structures of aperiodic polymers has been investigated in parallelization efficiency. The elongation finite-field method for determining (hypper)polarizabilities has been successfully applied to the three-dimensional urea crystal and its derivatives. It is shown that the elongation-FF method is suitable to large-scale calculations with parallelization and a powerful tool for nonlinear optical material designing.